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linux/sound/arm
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Peng Fan 54a032d3e6
 ASoC: pxa2xx-ac97: fix error handling for reset GPIO descriptor 
The reset GPIO obtained via devm_gpiod_get() may return an ERR_PTR()
when the GPIO is missing or an error occurs. The current code
unconditionally assigns PTR_ERR() to ret and later dereferences
rst_gpio via desc_to_gpio(), which is incorrect when rst_gpio is an
error pointer.

Rework the logic to first check IS_ERR(rst_gpio) before converting the
descriptor. Handle -ENOENT by disabling reset GPIO support, and return
other errors to the caller as expected.

Fixes: c76d50b71e ("ASoC: ac97: Convert to GPIO descriptors")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202604041426.i2C1xqHk-lkp@intel.com/
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://patch.msgid.link/20260413-ac97-v1-1-b44b9e084307@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
History 2026-04-13 18:00:34 +01:00
..
aaci.c ALSA: arm: Use guard() for spin locks 2025-09-10 13:20:01 +02:00
aaci.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Kconfig ASoC: codec: Remove pxa2xx-ac97.c 2026-01-27 12:45:55 +00:00
Makefile ASoC: codec: Remove pxa2xx-ac97.c 2026-01-27 12:45:55 +00:00
pxa2xx-ac97-lib.c ASoC: pxa2xx-ac97: fix error handling for reset GPIO descriptor 2026-04-13 18:00:34 +01:00
pxa2xx-ac97-regs.h ASoC: pxa: ac97: use normal MMIO accessors 2022-05-07 22:55:49 +02:00
pxa2xx-pcm-lib.c ASoC: arm: Use snd_soc_substream_to_rtd() for accessing private_data 2024-05-06 23:59:49 +09:00