From d0ec32caef0baa490b419895ef61c8481d49f7cd Mon Sep 17 00:00:00 2001 From: Jyri Sarha Date: Tue, 23 Feb 2016 12:44:27 +0200 Subject: [PATCH] drm/tilcdc: Use devm_kzalloc() and devm_kcalloc() for private data Use devm_kzalloc() and devm_kcalloc() for private data allocation at driver load time. Signed-off-by: Jyri Sarha Reviewed-by: Tomi Valkeinen --- drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 4 +--- drivers/gpu/drm/tilcdc/tilcdc_drv.c | 19 +++++++------------ drivers/gpu/drm/tilcdc/tilcdc_panel.c | 20 ++++++-------------- drivers/gpu/drm/tilcdc/tilcdc_tfp410.c | 24 +++++++----------------- 4 files changed, 21 insertions(+), 46 deletions(-) diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index 5f4da8c86ce2..051e5e1b7ad6 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -127,8 +127,6 @@ static void tilcdc_crtc_destroy(struct drm_crtc *crtc) of_node_put(crtc->port); drm_crtc_cleanup(crtc); drm_flip_work_cleanup(&tilcdc_crtc->unref_work); - - kfree(tilcdc_crtc); } static int tilcdc_verify_fb(struct drm_crtc *crtc, struct drm_framebuffer *fb) @@ -755,7 +753,7 @@ struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev) struct drm_crtc *crtc; int ret; - tilcdc_crtc = kzalloc(sizeof(*tilcdc_crtc), GFP_KERNEL); + tilcdc_crtc = devm_kzalloc(dev->dev, sizeof(*tilcdc_crtc), GFP_KERNEL); if (!tilcdc_crtc) { dev_err(dev->dev, "allocation failed\n"); return NULL; diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index 41ec890c4bca..709bc903524d 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -143,9 +143,6 @@ static int tilcdc_unload(struct drm_device *dev) pm_runtime_disable(dev->dev); - kfree(priv->saved_register); - kfree(priv); - return 0; } @@ -161,13 +158,12 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) u32 bpp = 0; int ret; - priv = kzalloc(sizeof(*priv), GFP_KERNEL); + priv = devm_kzalloc(dev->dev, sizeof(*priv), GFP_KERNEL); if (priv) - priv->saved_register = kcalloc(tilcdc_num_regs(), - sizeof(*priv->saved_register), - GFP_KERNEL); + priv->saved_register = + devm_kcalloc(dev->dev, tilcdc_num_regs(), + sizeof(*priv->saved_register), GFP_KERNEL); if (!priv || !priv->saved_register) { - kfree(priv); dev_err(dev->dev, "failed to allocate private data\n"); return -ENOMEM; } @@ -180,7 +176,7 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags) priv->wq = alloc_ordered_workqueue("tilcdc", 0); if (!priv->wq) { ret = -ENOMEM; - goto fail_free_priv; + goto fail_unset_priv; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -346,10 +342,9 @@ fail_free_wq: flush_workqueue(priv->wq); destroy_workqueue(priv->wq); -fail_free_priv: +fail_unset_priv: dev->dev_private = NULL; - kfree(priv->saved_register); - kfree(priv); + return ret; } diff --git a/drivers/gpu/drm/tilcdc/tilcdc_panel.c b/drivers/gpu/drm/tilcdc/tilcdc_panel.c index 8dcf02a79b23..ff7774c17d7c 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_panel.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_panel.c @@ -45,14 +45,6 @@ struct panel_encoder { }; #define to_panel_encoder(x) container_of(x, struct panel_encoder, base) - -static void panel_encoder_destroy(struct drm_encoder *encoder) -{ - struct panel_encoder *panel_encoder = to_panel_encoder(encoder); - drm_encoder_cleanup(encoder); - kfree(panel_encoder); -} - static void panel_encoder_dpms(struct drm_encoder *encoder, int mode) { struct panel_encoder *panel_encoder = to_panel_encoder(encoder); @@ -90,7 +82,7 @@ static void panel_encoder_mode_set(struct drm_encoder *encoder, } static const struct drm_encoder_funcs panel_encoder_funcs = { - .destroy = panel_encoder_destroy, + .destroy = drm_encoder_cleanup, }; static const struct drm_encoder_helper_funcs panel_encoder_helper_funcs = { @@ -107,7 +99,8 @@ static struct drm_encoder *panel_encoder_create(struct drm_device *dev, struct drm_encoder *encoder; int ret; - panel_encoder = kzalloc(sizeof(*panel_encoder), GFP_KERNEL); + panel_encoder = devm_kzalloc(dev->dev, sizeof(*panel_encoder), + GFP_KERNEL); if (!panel_encoder) { dev_err(dev->dev, "allocation failed\n"); return NULL; @@ -128,7 +121,7 @@ static struct drm_encoder *panel_encoder_create(struct drm_device *dev, return encoder; fail: - panel_encoder_destroy(encoder); + drm_encoder_cleanup(encoder); return NULL; } @@ -147,10 +140,8 @@ struct panel_connector { static void panel_connector_destroy(struct drm_connector *connector) { - struct panel_connector *panel_connector = to_panel_connector(connector); drm_connector_unregister(connector); drm_connector_cleanup(connector); - kfree(panel_connector); } static enum drm_connector_status panel_connector_detect( @@ -223,7 +214,8 @@ static struct drm_connector *panel_connector_create(struct drm_device *dev, struct drm_connector *connector; int ret; - panel_connector = kzalloc(sizeof(*panel_connector), GFP_KERNEL); + panel_connector = devm_kzalloc(dev->dev, sizeof(*panel_connector), + GFP_KERNEL); if (!panel_connector) { dev_err(dev->dev, "allocation failed\n"); return NULL; diff --git a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c index 1c230172b402..7716f42f8aab 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c @@ -54,14 +54,6 @@ struct tfp410_encoder { }; #define to_tfp410_encoder(x) container_of(x, struct tfp410_encoder, base) - -static void tfp410_encoder_destroy(struct drm_encoder *encoder) -{ - struct tfp410_encoder *tfp410_encoder = to_tfp410_encoder(encoder); - drm_encoder_cleanup(encoder); - kfree(tfp410_encoder); -} - static void tfp410_encoder_dpms(struct drm_encoder *encoder, int mode) { struct tfp410_encoder *tfp410_encoder = to_tfp410_encoder(encoder); @@ -99,7 +91,7 @@ static void tfp410_encoder_mode_set(struct drm_encoder *encoder, } static const struct drm_encoder_funcs tfp410_encoder_funcs = { - .destroy = tfp410_encoder_destroy, + .destroy = drm_encoder_cleanup, }; static const struct drm_encoder_helper_funcs tfp410_encoder_helper_funcs = { @@ -116,7 +108,8 @@ static struct drm_encoder *tfp410_encoder_create(struct drm_device *dev, struct drm_encoder *encoder; int ret; - tfp410_encoder = kzalloc(sizeof(*tfp410_encoder), GFP_KERNEL); + tfp410_encoder = devm_kzalloc(dev->dev, sizeof(*tfp410_encoder), + GFP_KERNEL); if (!tfp410_encoder) { dev_err(dev->dev, "allocation failed\n"); return NULL; @@ -138,7 +131,7 @@ static struct drm_encoder *tfp410_encoder_create(struct drm_device *dev, return encoder; fail: - tfp410_encoder_destroy(encoder); + drm_encoder_cleanup(encoder); return NULL; } @@ -157,10 +150,8 @@ struct tfp410_connector { static void tfp410_connector_destroy(struct drm_connector *connector) { - struct tfp410_connector *tfp410_connector = to_tfp410_connector(connector); drm_connector_unregister(connector); drm_connector_cleanup(connector); - kfree(tfp410_connector); } static enum drm_connector_status tfp410_connector_detect( @@ -228,7 +219,8 @@ static struct drm_connector *tfp410_connector_create(struct drm_device *dev, struct drm_connector *connector; int ret; - tfp410_connector = kzalloc(sizeof(*tfp410_connector), GFP_KERNEL); + tfp410_connector = devm_kzalloc(dev->dev, sizeof(*tfp410_connector), + GFP_KERNEL); if (!tfp410_connector) { dev_err(dev->dev, "allocation failed\n"); return NULL; @@ -313,7 +305,7 @@ static int tfp410_probe(struct platform_device *pdev) return -ENXIO; } - tfp410_mod = kzalloc(sizeof(*tfp410_mod), GFP_KERNEL); + tfp410_mod = devm_kzalloc(&pdev->dev, sizeof(*tfp410_mod), GFP_KERNEL); if (!tfp410_mod) return -ENOMEM; @@ -366,7 +358,6 @@ fail_adapter: i2c_put_adapter(tfp410_mod->i2c); fail: - kfree(tfp410_mod); tilcdc_module_cleanup(mod); return ret; } @@ -380,7 +371,6 @@ static int tfp410_remove(struct platform_device *pdev) gpio_free(tfp410_mod->gpio); tilcdc_module_cleanup(mod); - kfree(tfp410_mod); return 0; } -- 2.39.2