Revert "leds: lp5523: fix a missing check of return value of lp55xx_read"

commit 8d1beda5f11953ffe135a5213287f0b25b4da41b upstream.

This reverts commit 248b57015f35c94d4eae2fdd8c6febf5cd703900.

Because of recent interactions with developers from @umn.edu, all
commits from them have been recently re-reviewed to ensure if they were
correct or not.

Upon review, this commit was found to be incorrect for the reasons
below, so it must be reverted.  It will be fixed up "correctly" in a
later kernel change.

The original commit does not properly unwind if there is an error
condition so it needs to be reverted at this point in time.

Cc: Kangjie Lu <kjlu@umn.edu>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: stable <stable@vger.kernel.org>
Fixes: 248b57015f35 ("leds: lp5523: fix a missing check of return value of lp55xx_read")
Link: https://lore.kernel.org/r/20210503115736.2104747-9-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index fd64df5a57a5e0d41d97cd500a22f3fc99fe463e..a2e74feee2b2fa2c2dbb92d29c54a5174ba192c0 100644 (file)
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -318,9 +318,7 @@ static int lp5523_init_program_engine(struct lp55xx_chip *chip)
 
        /* Let the programs run for couple of ms and check the engine status */
        usleep_range(3000, 6000);
-       ret = lp55xx_read(chip, LP5523_REG_STATUS, &status);
-       if (ret)
-               return ret;
+       lp55xx_read(chip, LP5523_REG_STATUS, &status);
        status &= LP5523_ENG_STATUS_MASK;
 
        if (status != LP5523_ENG_STATUS_MASK) {