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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2021-06-21 14:21:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-20 16:16:10 +0200 |
| commit | 22ecd1ef4f644881ee75023696d0e442adbe26eb (patch) | |
| tree | ee95db6d6a4867dabe7b3524d6c454b7de4e3a18 /drivers | |
| parent | b15f3cad6f3637b482701066db3ba31c7af2633e (diff) | |
| download | linux-22ecd1ef4f644881ee75023696d0e442adbe26eb.tar.gz linux-22ecd1ef4f644881ee75023696d0e442adbe26eb.tar.bz2 linux-22ecd1ef4f644881ee75023696d0e442adbe26eb.zip | |
backlight: lm3630a: Fix return code of .update_status() callback
[ Upstream commit b9481a667a90ec739995e85f91f3672ca44d6ffa ]
According to <linux/backlight.h> .update_status() is supposed to
return 0 on success and a negative error code otherwise. Adapt
lm3630a_bank_a_update_status() and lm3630a_bank_b_update_status() to
actually do it.
While touching that also add the error code to the failure message.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/backlight/lm3630a_bl.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c index ef2553f452ca..f17e5a8860fa 100644 --- a/drivers/video/backlight/lm3630a_bl.c +++ b/drivers/video/backlight/lm3630a_bl.c @@ -184,7 +184,7 @@ static int lm3630a_bank_a_update_status(struct backlight_device *bl) if ((pwm_ctrl & LM3630A_PWM_BANK_A) != 0) { lm3630a_pwm_ctrl(pchip, bl->props.brightness, bl->props.max_brightness); - return bl->props.brightness; + return 0; } /* disable sleep */ @@ -204,8 +204,8 @@ static int lm3630a_bank_a_update_status(struct backlight_device *bl) return 0; out_i2c_err: - dev_err(pchip->dev, "i2c failed to access\n"); - return bl->props.brightness; + dev_err(pchip->dev, "i2c failed to access (%pe)\n", ERR_PTR(ret)); + return ret; } static int lm3630a_bank_a_get_brightness(struct backlight_device *bl) @@ -261,7 +261,7 @@ static int lm3630a_bank_b_update_status(struct backlight_device *bl) if ((pwm_ctrl & LM3630A_PWM_BANK_B) != 0) { lm3630a_pwm_ctrl(pchip, bl->props.brightness, bl->props.max_brightness); - return bl->props.brightness; + return 0; } /* disable sleep */ @@ -281,8 +281,8 @@ static int lm3630a_bank_b_update_status(struct backlight_device *bl) return 0; out_i2c_err: - dev_err(pchip->dev, "i2c failed to access REG_CTRL\n"); - return bl->props.brightness; + dev_err(pchip->dev, "i2c failed to access (%pe)\n", ERR_PTR(ret)); + return ret; } static int lm3630a_bank_b_get_brightness(struct backlight_device *bl) |