Commit f7bce372 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

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

commit 8d1beda5f11953ffe135a5213287f0b25b4da41b upstream.

This reverts commit 248b5701.

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: 248b5701 ("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: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 84a7ffe7
......@@ -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) {
......
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