ALSA: usb-audio: Add error checks against get_min_max*()

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All callers of get_min_max*() ignore the latter's return code
completely. This means to ignore temporary errors at the probe time.
However, it is not optimal and leads to some maintenance burdens.

Return -EAGAIN for temporary errors, and check against it in the callers
of get_min_max*(). If any other error occurs, bail out of the caller
early.

Suggested-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/87ldewi4j8.wl-tiwai@suse.de
Signed-off-by: Rong Zhang <i@rong.moe>
Link: https://patch.msgid.link/20260411-uac-sticky-mixer-v1-1-29d62717befd@rong.moe
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Rong Zhang 2026-04-11 01:49:02 +08:00 • committed by Takashi Iwai

parent 34fe4a9df2

commit 4f55a85cd4

1 changed files with 21 additions and 8 deletions

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sound/usb/mixer.c

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