From c981015e55f51d3f9bb3d52d07015f791a6b278d Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 1 Jul 2014 12:57:36 +0100 Subject: [PATCH] mfd: pcf50633: Reconnect -ENOMEM error path If platform_device_alloc() or platform_device_add_data() fail during pcf50633_probe(), the current code ignores the return error code and continues to attempt to allocate new platform devices for each of the supported regulators. Instead, if any failures occur we should fail out gracefully by cleaning up after ourselves and return the error. Signed-off-by: Lee Jones --- drivers/mfd/pcf50633-core.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c index 41ab5e34d2ac..c87f7a0a53f8 100644 --- a/drivers/mfd/pcf50633-core.c +++ b/drivers/mfd/pcf50633-core.c @@ -244,20 +244,20 @@ static int pcf50633_probe(struct i2c_client *client, for (i = 0; i < PCF50633_NUM_REGULATORS; i++) { struct platform_device *pdev; + int j; pdev = platform_device_alloc("pcf50633-regulator", i); - if (!pdev) { - dev_err(pcf->dev, "Cannot create regulator %d\n", i); - continue; - } + if (!pdev) + return -ENOMEM; pdev->dev.parent = pcf->dev; - if (platform_device_add_data(pdev, &pdata->reg_init_data[i], - sizeof(pdata->reg_init_data[i])) < 0) { + ret = platform_device_add_data(pdev, &pdata->reg_init_data[i], + sizeof(pdata->reg_init_data[i])); + if (ret) { platform_device_put(pdev); - dev_err(pcf->dev, "Out of memory for regulator parameters %d\n", - i); - continue; + for (j = 0; j < i; j++) + platform_device_put(pcf->regulator_pdev[j]); + return ret; } pcf->regulator_pdev[i] = pdev; -- 2.39.5