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authorTakashi Iwai <tiwai@suse.de>2022-02-14 13:57:11 +0100
committerTakashi Iwai <tiwai@suse.de>2022-02-14 13:57:51 +0100
commit9a5adeb28b77416446658e75bdef3bbe5fb92a83 (patch)
tree536d19b149028ce6abc13b82c2681dcbacb903cb /sound
parentdd8e5b161d7fb9cefa1f1d6e35a39b9e1563c8d3 (diff)
ALSA: usb-audio: Don't abort resume upon errors
The default mixer resume code treats the errors at restoring the modified mixer items as a fatal error, and it returns back to the caller. This ends up in the resume failure, and the device will be come unavailable, although basically those errors are intermittent and can be safely ignored. The problem itself has been present from the beginning, but it didn't hit usually because the code tries to resume only the modified items. But now with the recent commit to forcibly initialize each item at the probe time, the problem surfaced more often, hence it appears as a regression. This patch fixes the regression simply by ignoring the errors at resume. Fixes: b96681bd5827 ("ALSA: usb-audio: Initialize every feature unit once at probe time") Cc: <stable@vger.kernel.org> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215561 Link: https://lore.kernel.org/r/20220214125711.20531-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/usb/mixer.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 630766ba259f..a5641956ef10 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -3678,17 +3678,14 @@ static int restore_mixer_value(struct usb_mixer_elem_list *list)
err = snd_usb_set_cur_mix_value(cval, c + 1, idx,
cval->cache_val[idx]);
if (err < 0)
- return err;
+ break;
}
idx++;
}
} else {
/* master */
- if (cval->cached) {
- err = snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val);
- if (err < 0)
- return err;
- }
+ if (cval->cached)
+ snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val);
}
return 0;