[PATCH] backlight: lp855x: Drop ret variable in brightness change function
From: Artur Weber <aweber.kernel@gmail.com>
Date: 2023-08-09 11:42:49
Also in:
dri-devel, lkml
Subsystem:
backlight class/subsystem, framebuffer layer, the rest · Maintainers:
Lee Jones, Daniel Thompson, Jingoo Han, Helge Deller, Linus Torvalds
Fixes the following warning:
drivers/video/backlight/lp855x_bl.c:252:7: warning: variable 'ret' is used
uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Fixes: 5145531be5fb ("backlight: lp855x: Catch errors when changing brightness")
Reported-by: kernel test robot <redacted>
Closes: https://lore.kernel.org/oe-kbuild-all/202308091728.NEJhgUPP-lkp@intel.com/ (local)
---
drivers/video/backlight/lp855x_bl.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index 61a7f45bfad8..da1f124db69c 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c@@ -241,19 +241,17 @@ static int lp855x_bl_update_status(struct backlight_device *bl) { struct lp855x *lp = bl_get_data(bl); int brightness = bl->props.brightness; - int ret; if (bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK)) brightness = 0; if (lp->mode == PWM_BASED) - ret = lp855x_pwm_ctrl(lp, brightness, + return lp855x_pwm_ctrl(lp, brightness, bl->props.max_brightness); else if (lp->mode == REGISTER_BASED) - ret = lp855x_write_byte(lp, lp->cfg->reg_brightness, + return lp855x_write_byte(lp, lp->cfg->reg_brightness, (u8)brightness); - - return ret; + return -EINVAL; } static const struct backlight_ops lp855x_bl_ops = {
base-commit: 21ef7b1e17d039053edaeaf41142423810572741 -- 2.41.0