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(parent: 800211a) | patch
ALSA: usb-audio: Don't create a mixer element with bogus volume range
authorTakashi Iwai <tiwai@suse.de>
Fri, 14 Feb 2020 14:49:28 +0000 (15:49 +0100)
committerTakashi Iwai <tiwai@suse.de>
Fri, 14 Feb 2020 14:51:35 +0000 (15:51 +0100)
commite584cf41738ef11257efb8759cc6b83ab7316afe
tree981b6308930c35fd89be925edff71b1e984de1f0tree | snapshot
parent800211a4c73fd8f8de57b08c05ffd615399b7d59commit | diff
ALSA: usb-audio: Don't create a mixer element with bogus volume range

Some USB-audio descriptors provide a bogus volume range (e.g. volume
min and max are identical), which confuses user-space.
This patch makes the driver skipping such a control element.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206221
Link: https://lore.kernel.org/r/20200214144928.23628-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/mixer.c diff | blob | history
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