From: Masahiro Yamada Date: Tue, 9 Jun 2015 04:01:16 +0000 (+0900) Subject: pinctrl: make pinctrl_register() return proper error code X-Git-Tag: v4.2-rc1~128^2~5 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=323de9efdf3e;p=karo-tx-linux.git pinctrl: make pinctrl_register() return proper error code Currently, pinctrl_register() just returns NULL on error, so the callers can not know the exact reason of the failure. Some of the pinctrl drivers return -EINVAL, some -ENODEV, and some -ENOMEM on error of pinctrl_register(), although the error code might be different from the real cause of the error. This commit reworks pinctrl_register() to return the appropriate error code and modifies all of the pinctrl drivers to use IS_ERR() for the error checking and PTR_ERR() for getting the error code. Signed-off-by: Masahiro Yamada Acked-by: Patrice Chotard Acked-by: Thierry Reding Acked-by: Heiko Stuebner Tested-by: Mika Westerberg Acked-by: Mika Westerberg Acked-by: Lee Jones Acked-by: Sören Brinkmann Acked-by: Laurent Pinchart Acked-by: Ray Jui Acked-by: Antoine Tenart Acked-by: Hongzhou Yang Acked-by: Wei Chen Signed-off-by: Linus Walleij --- diff --git a/drivers/pinctrl/bcm/pinctrl-bcm281xx.c b/drivers/pinctrl/bcm/pinctrl-bcm281xx.c index 9641f1c7617e..c3c692e508e8 100644 --- a/drivers/pinctrl/bcm/pinctrl-bcm281xx.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm281xx.c @@ -1425,9 +1425,9 @@ static int __init bcm281xx_pinctrl_probe(struct platform_device *pdev) pctl = pinctrl_register(&bcm281xx_pinctrl_desc, &pdev->dev, pdata); - if (!pctl) { + if (IS_ERR(pctl)) { dev_err(&pdev->dev, "Failed to register pinctrl\n"); - return -ENODEV; + return PTR_ERR(pctl); } platform_set_drvdata(pdev, pdata); diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c index 8d908e3f42c3..efcf2a2b3975 100644 --- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c @@ -1036,9 +1036,9 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev) } pc->pctl_dev = pinctrl_register(&bcm2835_pinctrl_desc, dev, pc); - if (!pc->pctl_dev) { + if (IS_ERR(pc->pctl_dev)) { gpiochip_remove(&pc->gpio_chip); - return -EINVAL; + return PTR_ERR(pc->pctl_dev); } pc->gpio_range = bcm2835_pinctrl_gpio_range; diff --git a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c index bde45ba8d710..6af538f67dec 100644 --- a/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c +++ b/drivers/pinctrl/bcm/pinctrl-cygnus-gpio.c @@ -748,9 +748,9 @@ static int cygnus_gpio_register_pinconf(struct cygnus_gpio *chip) pctldesc->confops = &cygnus_pconf_ops; chip->pctl = pinctrl_register(pctldesc, chip->dev, chip); - if (!chip->pctl) { + if (IS_ERR(chip->pctl)) { dev_err(chip->dev, "unable to register pinctrl device\n"); - return -EINVAL; + return PTR_ERR(chip->pctl); } return 0; diff --git a/drivers/pinctrl/bcm/pinctrl-cygnus-mux.c b/drivers/pinctrl/bcm/pinctrl-cygnus-mux.c index f9a9283caf81..9728f3db9126 100644 --- a/drivers/pinctrl/bcm/pinctrl-cygnus-mux.c +++ b/drivers/pinctrl/bcm/pinctrl-cygnus-mux.c @@ -989,9 +989,9 @@ static int cygnus_pinmux_probe(struct platform_device *pdev) pinctrl->pctl = pinctrl_register(&cygnus_pinctrl_desc, &pdev->dev, pinctrl); - if (!pinctrl->pctl) { + if (IS_ERR(pinctrl->pctl)) { dev_err(&pdev->dev, "unable to register Cygnus IOMUX pinctrl\n"); - return -EINVAL; + return PTR_ERR(pinctrl->pctl); } return 0; diff --git a/drivers/pinctrl/berlin/berlin.c b/drivers/pinctrl/berlin/berlin.c index 7f0b0f93242b..ddbcd1d7de52 100644 --- a/drivers/pinctrl/berlin/berlin.c +++ b/drivers/pinctrl/berlin/berlin.c @@ -320,9 +320,9 @@ int berlin_pinctrl_probe(struct platform_device *pdev, } pctrl->pctrl_dev = pinctrl_register(&berlin_pctrl_desc, dev, pctrl); - if (!pctrl->pctrl_dev) { + if (IS_ERR(pctrl->pctrl_dev)) { dev_err(dev, "failed to register pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(pctrl->pctrl_dev); } return 0; diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index b01ee7281130..804d126b7065 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1706,14 +1706,14 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc, int ret; if (!pctldesc) - return NULL; + return ERR_PTR(-EINVAL); if (!pctldesc->name) - return NULL; + return ERR_PTR(-EINVAL); pctldev = kzalloc(sizeof(*pctldev), GFP_KERNEL); if (pctldev == NULL) { dev_err(dev, "failed to alloc struct pinctrl_dev\n"); - return NULL; + return ERR_PTR(-ENOMEM); } /* Initialize pin control device struct */ @@ -1726,20 +1726,23 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc, mutex_init(&pctldev->mutex); /* check core ops for sanity */ - if (pinctrl_check_ops(pctldev)) { + ret = pinctrl_check_ops(pctldev); + if (ret) { dev_err(dev, "pinctrl ops lacks necessary functions\n"); goto out_err; } /* If we're implementing pinmuxing, check the ops for sanity */ if (pctldesc->pmxops) { - if (pinmux_check_ops(pctldev)) + ret = pinmux_check_ops(pctldev); + if (ret) goto out_err; } /* If we're implementing pinconfig, check the ops for sanity */ if (pctldesc->confops) { - if (pinconf_check_ops(pctldev)) + ret = pinconf_check_ops(pctldev); + if (ret) goto out_err; } @@ -1785,7 +1788,7 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc, out_err: mutex_destroy(&pctldev->mutex); kfree(pctldev); - return NULL; + return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(pinctrl_register); diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c index e73e1edb0fe1..d7b98ba36825 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx.c +++ b/drivers/pinctrl/freescale/pinctrl-imx.c @@ -727,9 +727,9 @@ int imx_pinctrl_probe(struct platform_device *pdev, ipctl->dev = info->dev; platform_set_drvdata(pdev, ipctl); ipctl->pctl = pinctrl_register(&imx_pinctrl_desc, &pdev->dev, ipctl); - if (!ipctl->pctl) { + if (IS_ERR(ipctl->pctl)) { dev_err(&pdev->dev, "could not register IMX pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(ipctl->pctl); } dev_info(&pdev->dev, "initialized IMX pinctrl driver\n"); diff --git a/drivers/pinctrl/freescale/pinctrl-imx1-core.c b/drivers/pinctrl/freescale/pinctrl-imx1-core.c index 5ac59fbb2440..5fd4437cee15 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx1-core.c +++ b/drivers/pinctrl/freescale/pinctrl-imx1-core.c @@ -633,9 +633,9 @@ int imx1_pinctrl_core_probe(struct platform_device *pdev, ipctl->dev = info->dev; platform_set_drvdata(pdev, ipctl); ipctl->pctl = pinctrl_register(pctl_desc, &pdev->dev, ipctl); - if (!ipctl->pctl) { + if (IS_ERR(ipctl->pctl)) { dev_err(&pdev->dev, "could not register IMX pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(ipctl->pctl); } ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); diff --git a/drivers/pinctrl/freescale/pinctrl-mxs.c b/drivers/pinctrl/freescale/pinctrl-mxs.c index 646d5c244af1..f64eecb24755 100644 --- a/drivers/pinctrl/freescale/pinctrl-mxs.c +++ b/drivers/pinctrl/freescale/pinctrl-mxs.c @@ -540,9 +540,9 @@ int mxs_pinctrl_probe(struct platform_device *pdev, } d->pctl = pinctrl_register(&mxs_pinctrl_desc, &pdev->dev, d); - if (!d->pctl) { + if (IS_ERR(d->pctl)) { dev_err(&pdev->dev, "Couldn't register MXS pinctrl driver\n"); - ret = -EINVAL; + ret = PTR_ERR(d->pctl); goto err; } diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index 82f691eeeec4..9bed70b3ec94 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1489,9 +1489,9 @@ static int chv_pinctrl_probe(struct platform_device *pdev) pctrl->pctldesc.npins = pctrl->community->npins; pctrl->pctldev = pinctrl_register(&pctrl->pctldesc, &pdev->dev, pctrl); - if (!pctrl->pctldev) { + if (IS_ERR(pctrl->pctldev)) { dev_err(&pdev->dev, "failed to register pinctrl driver\n"); - return -ENODEV; + return PTR_ERR(pctrl->pctldev); } ret = chv_gpio_probe(pctrl, irq); diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 00768e53deec..f9ee0d68b288 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -1021,9 +1021,9 @@ int intel_pinctrl_probe(struct platform_device *pdev, pctrl->pctldesc.npins = pctrl->soc->npins; pctrl->pctldev = pinctrl_register(&pctrl->pctldesc, &pdev->dev, pctrl); - if (!pctrl->pctldev) { + if (IS_ERR(pctrl->pctldev)) { dev_err(&pdev->dev, "failed to register pinctrl driver\n"); - return -ENODEV; + return PTR_ERR(pctrl->pctldev); } ret = intel_gpio_probe(pctrl, irq); diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c index f206a54a3ca4..35f7b014af65 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c @@ -1269,9 +1269,9 @@ int mtk_pctrl_init(struct platform_device *pdev, mtk_pctrl_desc.npins = pctl->devdata->npins; pctl->dev = &pdev->dev; pctl->pctl_dev = pinctrl_register(&mtk_pctrl_desc, &pdev->dev, pctl); - if (!pctl->pctl_dev) { + if (IS_ERR(pctl->pctl_dev)) { dev_err(&pdev->dev, "couldn't register pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(pctl->pctl_dev); } pctl->chip = devm_kzalloc(&pdev->dev, sizeof(*pctl->chip), GFP_KERNEL); diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c index edcd140e0899..7b203bf118d9 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -738,9 +738,9 @@ static int meson_pinctrl_probe(struct platform_device *pdev) pc->desc.npins = pc->data->num_pins; pc->pcdev = pinctrl_register(&pc->desc, pc->dev, pc); - if (!pc->pcdev) { + if (IS_ERR(pc->pcdev)) { dev_err(pc->dev, "can't register pinctrl device"); - return -EINVAL; + return PTR_ERR(pc->pcdev); } ret = meson_gpiolib_register(pc); diff --git a/drivers/pinctrl/mvebu/pinctrl-mvebu.c b/drivers/pinctrl/mvebu/pinctrl-mvebu.c index f3b426cdaf8f..77d2221d379d 100644 --- a/drivers/pinctrl/mvebu/pinctrl-mvebu.c +++ b/drivers/pinctrl/mvebu/pinctrl-mvebu.c @@ -706,9 +706,9 @@ int mvebu_pinctrl_probe(struct platform_device *pdev) } pctl->pctldev = pinctrl_register(&pctl->desc, &pdev->dev, pctl); - if (!pctl->pctldev) { + if (IS_ERR(pctl->pctldev)) { dev_err(&pdev->dev, "unable to register pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(pctl->pctldev); } dev_info(&pdev->dev, "registered pinctrl driver\n"); diff --git a/drivers/pinctrl/nomadik/pinctrl-abx500.c b/drivers/pinctrl/nomadik/pinctrl-abx500.c index 15ccafd74dc6..557d0f2a3031 100644 --- a/drivers/pinctrl/nomadik/pinctrl-abx500.c +++ b/drivers/pinctrl/nomadik/pinctrl-abx500.c @@ -1235,10 +1235,10 @@ static int abx500_gpio_probe(struct platform_device *pdev) abx500_pinctrl_desc.pins = pct->soc->pins; abx500_pinctrl_desc.npins = pct->soc->npins; pct->pctldev = pinctrl_register(&abx500_pinctrl_desc, &pdev->dev, pct); - if (!pct->pctldev) { + if (IS_ERR(pct->pctldev)) { dev_err(&pdev->dev, "could not register abx500 pinctrl driver\n"); - ret = -EINVAL; + ret = PTR_ERR(pct->pctldev); goto out_rem_chip; } dev_info(&pdev->dev, "registered pin controller\n"); diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c index 2589304e76d1..809d88445db5 100644 --- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c +++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c @@ -2029,9 +2029,9 @@ static int nmk_pinctrl_probe(struct platform_device *pdev) npct->dev = &pdev->dev; npct->pctl = pinctrl_register(&nmk_pinctrl_desc, &pdev->dev, npct); - if (!npct->pctl) { + if (IS_ERR(npct->pctl)) { dev_err(&pdev->dev, "could not register Nomadik pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(npct->pctl); } /* We will handle a range of GPIO pins */ diff --git a/drivers/pinctrl/pinctrl-adi2.c b/drivers/pinctrl/pinctrl-adi2.c index 49df9037b41e..873433da0f2c 100644 --- a/drivers/pinctrl/pinctrl-adi2.c +++ b/drivers/pinctrl/pinctrl-adi2.c @@ -1070,9 +1070,9 @@ static int adi_pinctrl_probe(struct platform_device *pdev) /* Now register the pin controller and all pins it handles */ pinctrl->pctl = pinctrl_register(&adi_pinmux_desc, &pdev->dev, pinctrl); - if (!pinctrl->pctl) { + if (IS_ERR(pinctrl->pctl)) { dev_err(&pdev->dev, "could not register pinctrl ADI2 driver\n"); - return -EINVAL; + return PTR_ERR(pinctrl->pctl); } platform_set_drvdata(pdev, pinctrl); diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index e74791254c9c..d8e3f7c7fea3 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -789,9 +789,9 @@ static int amd_gpio_probe(struct platform_device *pdev) amd_pinctrl_desc.name = dev_name(&pdev->dev); gpio_dev->pctrl = pinctrl_register(&amd_pinctrl_desc, &pdev->dev, gpio_dev); - if (!gpio_dev->pctrl) { + if (IS_ERR(gpio_dev->pctrl)) { dev_err(&pdev->dev, "Couldn't register pinctrl driver\n"); - return -ENODEV; + return PTR_ERR(gpio_dev->pctrl); } ret = gpiochip_add(&gpio_dev->gc); diff --git a/drivers/pinctrl/pinctrl-as3722.c b/drivers/pinctrl/pinctrl-as3722.c index db0571ffbe99..4747e08f5389 100644 --- a/drivers/pinctrl/pinctrl-as3722.c +++ b/drivers/pinctrl/pinctrl-as3722.c @@ -586,9 +586,9 @@ static int as3722_pinctrl_probe(struct platform_device *pdev) as3722_pinctrl_desc.npins = ARRAY_SIZE(as3722_pins_desc); as_pci->pctl = pinctrl_register(&as3722_pinctrl_desc, &pdev->dev, as_pci); - if (!as_pci->pctl) { + if (IS_ERR(as_pci->pctl)) { dev_err(&pdev->dev, "Couldn't register pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(as_pci->pctl); } as_pci->gpio_chip = as3722_gpio_chip; diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index d80ade23fd1b..a0824477072b 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1238,9 +1238,9 @@ static int at91_pinctrl_probe(struct platform_device *pdev) platform_set_drvdata(pdev, info); info->pctl = pinctrl_register(&at91_pinctrl_desc, &pdev->dev, info); - if (!info->pctl) { + if (IS_ERR(info->pctl)) { dev_err(&pdev->dev, "could not register AT91 pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(info->pctl); } /* We will handle a range of GPIO pins */ diff --git a/drivers/pinctrl/pinctrl-lantiq.c b/drivers/pinctrl/pinctrl-lantiq.c index 296e5b37f768..fc38a8540544 100644 --- a/drivers/pinctrl/pinctrl-lantiq.c +++ b/drivers/pinctrl/pinctrl-lantiq.c @@ -337,9 +337,9 @@ int ltq_pinctrl_register(struct platform_device *pdev, info->dev = &pdev->dev; info->pctrl = pinctrl_register(desc, &pdev->dev, info); - if (!info->pctrl) { + if (IS_ERR(info->pctrl)) { dev_err(&pdev->dev, "failed to register LTQ pinmux driver\n"); - return -EINVAL; + return PTR_ERR(info->pctrl); } platform_set_drvdata(pdev, info); return 0; diff --git a/drivers/pinctrl/pinctrl-lpc18xx.c b/drivers/pinctrl/pinctrl-lpc18xx.c index a8bc1ad4e73f..ef0b697639a7 100644 --- a/drivers/pinctrl/pinctrl-lpc18xx.c +++ b/drivers/pinctrl/pinctrl-lpc18xx.c @@ -1180,10 +1180,10 @@ static int lpc18xx_scu_probe(struct platform_device *pdev) platform_set_drvdata(pdev, scu); scu->pctl = pinctrl_register(&lpc18xx_scu_desc, &pdev->dev, scu); - if (!scu->pctl) { + if (IS_ERR(scu->pctl)) { dev_err(&pdev->dev, "Could not register pinctrl driver\n"); clk_disable_unprepare(scu->clk); - return -EINVAL; + return PTR_ERR(scu->pctl); } return 0; diff --git a/drivers/pinctrl/pinctrl-palmas.c b/drivers/pinctrl/pinctrl-palmas.c index 2631df0504bd..f7e168044baf 100644 --- a/drivers/pinctrl/pinctrl-palmas.c +++ b/drivers/pinctrl/pinctrl-palmas.c @@ -1044,9 +1044,9 @@ static int palmas_pinctrl_probe(struct platform_device *pdev) palmas_pinctrl_desc.pins = palmas_pins_desc; palmas_pinctrl_desc.npins = ARRAY_SIZE(palmas_pins_desc); pci->pctl = pinctrl_register(&palmas_pinctrl_desc, &pdev->dev, pci); - if (!pci->pctl) { + if (IS_ERR(pci->pctl)) { dev_err(&pdev->dev, "Couldn't register pinctrl driver\n"); - return -ENODEV; + return PTR_ERR(pci->pctl); } return 0; } diff --git a/drivers/pinctrl/pinctrl-pistachio.c b/drivers/pinctrl/pinctrl-pistachio.c index 079ce8b13697..63100be81015 100644 --- a/drivers/pinctrl/pinctrl-pistachio.c +++ b/drivers/pinctrl/pinctrl-pistachio.c @@ -1474,9 +1474,9 @@ static int pistachio_pinctrl_probe(struct platform_device *pdev) pctl->pctldev = pinctrl_register(&pistachio_pinctrl_desc, &pdev->dev, pctl); - if (!pctl->pctldev) { + if (IS_ERR(pctl->pctldev)) { dev_err(&pdev->dev, "Failed to register pinctrl device\n"); - return -EINVAL; + return PTR_ERR(pctl->pctldev); } ret = pistachio_gpio_register(pctl); diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index dee7d5f06c60..6e7643f7f2a0 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -1274,9 +1274,9 @@ static int rockchip_pinctrl_register(struct platform_device *pdev, return ret; info->pctl_dev = pinctrl_register(ctrldesc, &pdev->dev, info); - if (!info->pctl_dev) { + if (IS_ERR(info->pctl_dev)) { dev_err(&pdev->dev, "could not register pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(info->pctl_dev); } for (bank = 0; bank < info->ctrl->nr_banks; ++bank) { diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index 968e352c595f..b2de09d3b1a0 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -1921,9 +1921,9 @@ static int pcs_probe(struct platform_device *pdev) goto free; pcs->pctl = pinctrl_register(&pcs->desc, pcs->dev, pcs); - if (!pcs->pctl) { + if (IS_ERR(pcs->pctl)) { dev_err(pcs->dev, "could not register single pinctrl driver\n"); - ret = -EINVAL; + ret = PTR_ERR(pcs->pctl); goto free; } diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c index 65bf73b70e34..d34ac879af9e 100644 --- a/drivers/pinctrl/pinctrl-st.c +++ b/drivers/pinctrl/pinctrl-st.c @@ -1737,9 +1737,9 @@ static int st_pctl_probe(struct platform_device *pdev) pctl_desc->name = dev_name(&pdev->dev); info->pctl = pinctrl_register(pctl_desc, &pdev->dev, info); - if (!info->pctl) { + if (IS_ERR(info->pctl)) { dev_err(&pdev->dev, "Failed pinctrl registration\n"); - return -EINVAL; + return PTR_ERR(info->pctl); } for (i = 0; i < info->nbanks; i++) diff --git a/drivers/pinctrl/pinctrl-tb10x.c b/drivers/pinctrl/pinctrl-tb10x.c index 160a1f5e9896..6546b9bb2e06 100644 --- a/drivers/pinctrl/pinctrl-tb10x.c +++ b/drivers/pinctrl/pinctrl-tb10x.c @@ -807,9 +807,9 @@ static int tb10x_pinctrl_probe(struct platform_device *pdev) } state->pctl = pinctrl_register(&tb10x_pindesc, dev, state); - if (!state->pctl) { + if (IS_ERR(state->pctl)) { dev_err(dev, "could not register TB10x pin driver\n"); - ret = -EINVAL; + ret = PTR_ERR(state->pctl); goto fail; } diff --git a/drivers/pinctrl/pinctrl-tegra-xusb.c b/drivers/pinctrl/pinctrl-tegra-xusb.c index 6a6eebfb2930..2651d04bd1be 100644 --- a/drivers/pinctrl/pinctrl-tegra-xusb.c +++ b/drivers/pinctrl/pinctrl-tegra-xusb.c @@ -922,9 +922,9 @@ static int tegra_xusb_padctl_probe(struct platform_device *pdev) padctl->desc.owner = THIS_MODULE; padctl->pinctrl = pinctrl_register(&padctl->desc, &pdev->dev, padctl); - if (!padctl->pinctrl) { + if (IS_ERR(padctl->pinctrl)) { dev_err(&pdev->dev, "failed to register pincontrol\n"); - err = -ENODEV; + err = PTR_ERR(padctl->pinctrl); goto reset; } diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c index 4c95c2024a1c..0f982b829be1 100644 --- a/drivers/pinctrl/pinctrl-tegra.c +++ b/drivers/pinctrl/pinctrl-tegra.c @@ -703,9 +703,9 @@ int tegra_pinctrl_probe(struct platform_device *pdev, } pmx->pctl = pinctrl_register(&tegra_pinctrl_desc, &pdev->dev, pmx); - if (!pmx->pctl) { + if (IS_ERR(pmx->pctl)) { dev_err(&pdev->dev, "Couldn't register pinctrl driver\n"); - return -ENODEV; + return PTR_ERR(pmx->pctl); } pinctrl_add_gpio_range(pmx->pctl, &tegra_pinctrl_gpio_range); diff --git a/drivers/pinctrl/pinctrl-tz1090-pdc.c b/drivers/pinctrl/pinctrl-tz1090-pdc.c index 8a8911bb883a..c349911708ef 100644 --- a/drivers/pinctrl/pinctrl-tz1090-pdc.c +++ b/drivers/pinctrl/pinctrl-tz1090-pdc.c @@ -948,9 +948,9 @@ static int tz1090_pdc_pinctrl_probe(struct platform_device *pdev) return PTR_ERR(pmx->regs); pmx->pctl = pinctrl_register(&tz1090_pdc_pinctrl_desc, &pdev->dev, pmx); - if (!pmx->pctl) { + if (IS_ERR(pmx->pctl)) { dev_err(&pdev->dev, "Couldn't register pinctrl driver\n"); - return -ENODEV; + return PTR_ERR(pmx->pctl); } platform_set_drvdata(pdev, pmx); diff --git a/drivers/pinctrl/pinctrl-tz1090.c b/drivers/pinctrl/pinctrl-tz1090.c index fc5594a530c2..6d07a2f64d97 100644 --- a/drivers/pinctrl/pinctrl-tz1090.c +++ b/drivers/pinctrl/pinctrl-tz1090.c @@ -1963,9 +1963,9 @@ static int tz1090_pinctrl_probe(struct platform_device *pdev) return PTR_ERR(pmx->regs); pmx->pctl = pinctrl_register(&tz1090_pinctrl_desc, &pdev->dev, pmx); - if (!pmx->pctl) { + if (IS_ERR(pmx->pctl)) { dev_err(&pdev->dev, "Couldn't register pinctrl driver\n"); - return -ENODEV; + return PTR_ERR(pmx->pctl); } platform_set_drvdata(pdev, pmx); diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c index f931e65aba3a..c076021f37d2 100644 --- a/drivers/pinctrl/pinctrl-u300.c +++ b/drivers/pinctrl/pinctrl-u300.c @@ -1068,9 +1068,9 @@ static int u300_pmx_probe(struct platform_device *pdev) return PTR_ERR(upmx->virtbase); upmx->pctl = pinctrl_register(&u300_pmx_desc, &pdev->dev, upmx); - if (!upmx->pctl) { + if (IS_ERR(upmx->pctl)) { dev_err(&pdev->dev, "could not register U300 pinmux driver\n"); - return -EINVAL; + return PTR_ERR(upmx->pctl); } platform_set_drvdata(pdev, upmx); diff --git a/drivers/pinctrl/pinctrl-zynq.c b/drivers/pinctrl/pinctrl-zynq.c index 40b2affcbeef..7ce23b6282ad 100644 --- a/drivers/pinctrl/pinctrl-zynq.c +++ b/drivers/pinctrl/pinctrl-zynq.c @@ -1196,8 +1196,8 @@ static int zynq_pinctrl_probe(struct platform_device *pdev) pctrl->nfuncs = ARRAY_SIZE(zynq_pmux_functions); pctrl->pctrl = pinctrl_register(&zynq_desc, &pdev->dev, pctrl); - if (!pctrl->pctrl) - return -ENOMEM; + if (IS_ERR(pctrl->pctrl)) + return PTR_ERR(pctrl->pctrl); platform_set_drvdata(pdev, pctrl); diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index f3d800f796c2..e457d52302a2 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -906,9 +906,9 @@ int msm_pinctrl_probe(struct platform_device *pdev, msm_pinctrl_desc.pins = pctrl->soc->pins; msm_pinctrl_desc.npins = pctrl->soc->npins; pctrl->pctrl = pinctrl_register(&msm_pinctrl_desc, &pdev->dev, pctrl); - if (!pctrl->pctrl) { + if (IS_ERR(pctrl->pctrl)) { dev_err(&pdev->dev, "Couldn't register pinctrl driver\n"); - return -ENODEV; + return PTR_ERR(pctrl->pctrl); } ret = msm_gpio_init(pctrl); diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c index b2d22218a258..f92f229b6d65 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c @@ -776,8 +776,8 @@ static int pmic_gpio_probe(struct platform_device *pdev) state->chip.can_sleep = false; state->ctrl = pinctrl_register(pctrldesc, dev, state); - if (!state->ctrl) - return -ENODEV; + if (IS_ERR(state->ctrl)) + return PTR_ERR(state->ctrl); ret = gpiochip_add(&state->chip); if (ret) { diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c index 8f36c5f91949..cd7ca113cc93 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c @@ -890,8 +890,8 @@ static int pmic_mpp_probe(struct platform_device *pdev) state->chip.can_sleep = false; state->ctrl = pinctrl_register(pctrldesc, dev, state); - if (!state->ctrl) - return -ENODEV; + if (IS_ERR(state->ctrl)) + return PTR_ERR(state->ctrl); ret = gpiochip_add(&state->chip); if (ret) { diff --git a/drivers/pinctrl/samsung/pinctrl-exynos5440.c b/drivers/pinctrl/samsung/pinctrl-exynos5440.c index 86192be3b679..f5619fb50447 100644 --- a/drivers/pinctrl/samsung/pinctrl-exynos5440.c +++ b/drivers/pinctrl/samsung/pinctrl-exynos5440.c @@ -822,9 +822,9 @@ static int exynos5440_pinctrl_register(struct platform_device *pdev, return ret; pctl_dev = pinctrl_register(ctrldesc, &pdev->dev, priv); - if (!pctl_dev) { + if (IS_ERR(pctl_dev)) { dev_err(&pdev->dev, "could not register pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(pctl_dev); } grange.name = "exynos5440-pctrl-gpio-range"; diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c index 0fd20c5ffde9..3dd5a3b2ac62 100644 --- a/drivers/pinctrl/samsung/pinctrl-samsung.c +++ b/drivers/pinctrl/samsung/pinctrl-samsung.c @@ -873,9 +873,9 @@ static int samsung_pinctrl_register(struct platform_device *pdev, return ret; drvdata->pctl_dev = pinctrl_register(ctrldesc, &pdev->dev, drvdata); - if (!drvdata->pctl_dev) { + if (IS_ERR(drvdata->pctl_dev)) { dev_err(&pdev->dev, "could not register pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(drvdata->pctl_dev); } for (bank = 0; bank < drvdata->nr_banks; ++bank) { diff --git a/drivers/pinctrl/sh-pfc/pinctrl.c b/drivers/pinctrl/sh-pfc/pinctrl.c index 072e7c62cab7..ff678966008b 100644 --- a/drivers/pinctrl/sh-pfc/pinctrl.c +++ b/drivers/pinctrl/sh-pfc/pinctrl.c @@ -625,8 +625,8 @@ int sh_pfc_register_pinctrl(struct sh_pfc *pfc) pmx->pctl_desc.npins = pfc->info->nr_pins; pmx->pctl = pinctrl_register(&pmx->pctl_desc, pfc->dev, pmx); - if (pmx->pctl == NULL) - return -EINVAL; + if (IS_ERR(pmx->pctl)) + return PTR_ERR(pmx->pctl); return 0; } diff --git a/drivers/pinctrl/sirf/pinctrl-atlas7.c b/drivers/pinctrl/sirf/pinctrl-atlas7.c index c2ced3f68768..9384e0aa3996 100644 --- a/drivers/pinctrl/sirf/pinctrl-atlas7.c +++ b/drivers/pinctrl/sirf/pinctrl-atlas7.c @@ -4079,9 +4079,9 @@ static int atlas7_pinmux_probe(struct platform_device *pdev) /* Now register the pin controller and all pins it handles */ pmx->pctl = pinctrl_register(&pmx->pctl_desc, &pdev->dev, pmx); - if (!pmx->pctl) { + if (IS_ERR(pmx->pctl)) { dev_err(&pdev->dev, "could not register atlas7 pinmux driver\n"); - ret = -EINVAL; + ret = PTR_ERR(pmx->pctl); goto unmap_io; } diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c index e2efbbae4061..8ba26e45499a 100644 --- a/drivers/pinctrl/sirf/pinctrl-sirf.c +++ b/drivers/pinctrl/sirf/pinctrl-sirf.c @@ -310,9 +310,9 @@ static int sirfsoc_pinmux_probe(struct platform_device *pdev) /* Now register the pin controller and all pins it handles */ spmx->pmx = pinctrl_register(&sirfsoc_pinmux_desc, &pdev->dev, spmx); - if (!spmx->pmx) { + if (IS_ERR(spmx->pmx)) { dev_err(&pdev->dev, "could not register SIRFSOC pinmux driver\n"); - ret = -EINVAL; + ret = PTR_ERR(spmx->pmx); goto out_no_pmx; } diff --git a/drivers/pinctrl/spear/pinctrl-spear.c b/drivers/pinctrl/spear/pinctrl-spear.c index abdb05ac43dc..f87a5eaf75da 100644 --- a/drivers/pinctrl/spear/pinctrl-spear.c +++ b/drivers/pinctrl/spear/pinctrl-spear.c @@ -396,9 +396,9 @@ int spear_pinctrl_probe(struct platform_device *pdev, spear_pinctrl_desc.npins = machdata->npins; pmx->pctl = pinctrl_register(&spear_pinctrl_desc, &pdev->dev, pmx); - if (!pmx->pctl) { + if (IS_ERR(pmx->pctl)) { dev_err(&pdev->dev, "Couldn't register pinctrl driver\n"); - return -ENODEV; + return PTR_ERR(pmx->pctl); } return 0; diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c index f8e171b76693..d7857c72e627 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -911,9 +911,9 @@ int sunxi_pinctrl_init(struct platform_device *pdev, pctl->pctl_dev = pinctrl_register(pctrl_desc, &pdev->dev, pctl); - if (!pctl->pctl_dev) { + if (IS_ERR(pctl->pctl_dev)) { dev_err(&pdev->dev, "couldn't register pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(pctl->pctl_dev); } pctl->chip = devm_kzalloc(&pdev->dev, sizeof(*pctl->chip), GFP_KERNEL); diff --git a/drivers/pinctrl/vt8500/pinctrl-wmt.c b/drivers/pinctrl/vt8500/pinctrl-wmt.c index d055d63309e4..c15316b003c5 100644 --- a/drivers/pinctrl/vt8500/pinctrl-wmt.c +++ b/drivers/pinctrl/vt8500/pinctrl-wmt.c @@ -594,9 +594,9 @@ int wmt_pinctrl_probe(struct platform_device *pdev, data->dev = &pdev->dev; data->pctl_dev = pinctrl_register(&wmt_desc, &pdev->dev, data); - if (!data->pctl_dev) { + if (IS_ERR(data->pctl_dev)) { dev_err(&pdev->dev, "Failed to register pinctrl\n"); - return -EINVAL; + return PTR_ERR(data->pctl_dev); } err = gpiochip_add(&data->gpio_chip);