From: Markus Elfring Date: Wed, 19 Nov 2014 17:30:22 +0000 (+0100) Subject: HID: picoLCD: Deletion of unnecessary checks before three function calls X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4b8a8262086ece4b7eb34bd2e40cce3b3c9c7079;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git HID: picoLCD: Deletion of unnecessary checks before three function calls The functions backlight_device_unregister(), lcd_device_unregister() and rc_unregister_device() test whether their argument is NULL and then return immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Reviewed-by: Bruno Prémont Signed-off-by: Jiri Kosina --- diff --git a/drivers/hid/hid-picolcd_backlight.c b/drivers/hid/hid-picolcd_backlight.c index a32c5f86b0b3..808807ad388f 100644 --- a/drivers/hid/hid-picolcd_backlight.c +++ b/drivers/hid/hid-picolcd_backlight.c @@ -94,8 +94,7 @@ void picolcd_exit_backlight(struct picolcd_data *data) struct backlight_device *bdev = data->backlight; data->backlight = NULL; - if (bdev) - backlight_device_unregister(bdev); + backlight_device_unregister(bdev); } int picolcd_resume_backlight(struct picolcd_data *data) diff --git a/drivers/hid/hid-picolcd_cir.c b/drivers/hid/hid-picolcd_cir.c index 045f8ebf16b5..96286510f42e 100644 --- a/drivers/hid/hid-picolcd_cir.c +++ b/drivers/hid/hid-picolcd_cir.c @@ -145,7 +145,6 @@ void picolcd_exit_cir(struct picolcd_data *data) struct rc_dev *rdev = data->rc_dev; data->rc_dev = NULL; - if (rdev) - rc_unregister_device(rdev); + rc_unregister_device(rdev); } diff --git a/drivers/hid/hid-picolcd_lcd.c b/drivers/hid/hid-picolcd_lcd.c index 89821c2da6d7..22dcbe13da89 100644 --- a/drivers/hid/hid-picolcd_lcd.c +++ b/drivers/hid/hid-picolcd_lcd.c @@ -92,8 +92,7 @@ void picolcd_exit_lcd(struct picolcd_data *data) struct lcd_device *ldev = data->lcd; data->lcd = NULL; - if (ldev) - lcd_device_unregister(ldev); + lcd_device_unregister(ldev); } int picolcd_resume_lcd(struct picolcd_data *data)