ALSA: control: Return -ENODEV instead of -EFAULT in snd_ctl_open()

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When try_module_get() fails in snd_ctl_open(), the owning module is going
away and the device is no longer usable, so -EFAULT ("bad address") is the
wrong error. Return -ENODEV, matching the other unavailable-device paths
in this function(the NULL card check and the snd_card_file_add() failure).
This changes the errno reported to userspace on this rare race.
No other behaviour changes.

Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260707084506.718583-2-phucduc.bui@gmail.com

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bui duc phuc 2026-07-07 15:45:01 +07:00 • committed by Takashi Iwai

parent bf08a5f698

commit b45f4e8d78

1 changed files with 1 additions and 1 deletions

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sound/core/control.c

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