Re: [PATCH v6 1/3] backlight: lm3630a: return 0 on success in update_status functions

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On 24/04/2019 10:25, Brian Masney wrote:
lm3630a_bank_a_update_status() and lm3630a_bank_b_update_status()
both return the brightness value if the brightness was successfully
updated. Writing to these attributes via sysfs would cause a 'Bad
address' error to be returned. These functions should return 0 on
success, so let's change it to correct that error.

Signed-off-by: Brian Masney <masneyb@xxxxxxxxxxxxx>
Fixes: 28e64a68a2ef ("backlight: lm3630: apply chip revision")
Acked-by: Pavel Machek <pavel@xxxxxx>

Hi Brian, sorry for the delay. For some reason your mails are being dumped before they reach me so I only discovered these patches when I paid proper attention to the replies and fetched them from patchwork.

Hi Lee, is the same thing happening for you? ;-)

Acked-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx>


---
No changes since v2 when this patch was originally introduced.

  drivers/video/backlight/lm3630a_bl.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index 2030a6b77a09..ef2553f452ca 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -201,7 +201,7 @@ static int lm3630a_bank_a_update_status(struct backlight_device *bl)
  				      LM3630A_LEDA_ENABLE, LM3630A_LEDA_ENABLE);
  	if (ret < 0)
  		goto out_i2c_err;
-	return bl->props.brightness;
+	return 0;
out_i2c_err:
  	dev_err(pchip->dev, "i2c failed to access\n");
@@ -278,7 +278,7 @@ static int lm3630a_bank_b_update_status(struct backlight_device *bl)
  				      LM3630A_LEDB_ENABLE, LM3630A_LEDB_ENABLE);
  	if (ret < 0)
  		goto out_i2c_err;
-	return bl->props.brightness;
+	return 0;
out_i2c_err:
  	dev_err(pchip->dev, "i2c failed to access REG_CTRL\n");


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