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 <[email protected]>
Reviewed-by: Daniel Thompson <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
1 file changed
