From: Julia Lawall <Julia.Lawall@xxxxxxx> The various devm_ functions allocate memory that is released when a driver detaches. This patch uses these functions for data that is allocated in the probe function of a platform device and is only freed in the remove function. Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx> --- drivers/video/backlight/wm831x_bl.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/video/backlight/wm831x_bl.c b/drivers/video/backlight/wm831x_bl.c index 4e915f5..5d365de 100644 --- a/drivers/video/backlight/wm831x_bl.c +++ b/drivers/video/backlight/wm831x_bl.c @@ -186,7 +186,7 @@ static int wm831x_backlight_probe(struct platform_device *pdev) if (ret < 0) return ret; - data = kzalloc(sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); if (data == NULL) return -ENOMEM; @@ -200,7 +200,6 @@ static int wm831x_backlight_probe(struct platform_device *pdev) &wm831x_backlight_ops, &props); if (IS_ERR(bl)) { dev_err(&pdev->dev, "failed to register backlight\n"); - kfree(data); return PTR_ERR(bl); } @@ -211,7 +210,6 @@ static int wm831x_backlight_probe(struct platform_device *pdev) /* Disable the DCDC if it was started so we can bootstrap */ wm831x_set_bits(wm831x, WM831X_DCDC_ENABLE, WM831X_DC4_ENA, 0); - backlight_update_status(bl); return 0; @@ -220,10 +218,8 @@ static int wm831x_backlight_probe(struct platform_device *pdev) static int wm831x_backlight_remove(struct platform_device *pdev) { struct backlight_device *bl = platform_get_drvdata(pdev); - struct wm831x_backlight_data *data = bl_get_data(bl); backlight_device_unregister(bl); - kfree(data); return 0; } -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html