gpiolib: fix memory leak in gpiod_set_array_value_complex() on error paths

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A drive-by review by Sashiko reports that, after a failed call to
gpiochip_set_multiple(), gpiod_set_array_value() returns abruptly,
bypassing the freeing of possibly alloced bitmaps, potentially leaking
memory. It is an unlikely error path, but is possible.

Defer the return code check until after the bitmap_free() block.

Fixes: 9b40731275 ("gpiolib: rework the wrapper around gpio_chip::set_multiple()")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Link: https://lore.kernel.org/linux-gpio/sashiko-outbox-168233@kernel.org/
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Link: https://patch.msgid.link/20261015025749.47039-1-warthog618@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

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Kent Gibson 2026-10-15 10:57:49 +08:00 • committed by Bartosz Golaszewski

parent 851bb4a429

commit c28846ca1a

1 changed files with 5 additions and 4 deletions

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drivers/gpio/gpiolib.c

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