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(parent: 718b2c9) | patch
ALSA: usb-audio: Avoid unnecessary interface change at EP close
authorTakashi Iwai <tiwai@suse.de>
Sun, 9 Oct 2022 10:42:09 +0000 (12:42 +0200)
committerTakashi Iwai <tiwai@suse.de>
Sun, 9 Oct 2022 10:43:24 +0000 (12:43 +0200)
commit32b9ad657216f2bf27f3519b406e862cb2c5940d
treeb74c15b89dc278f2d747c186ed21dee62ad910d2tree | snapshot
parent718b2c90c445a8ce1fb775b87a686757d9c955e9commit | diff
ALSA: usb-audio: Avoid unnecessary interface change at EP close

We toggle USB interface at PCM prepare and reset at close.  When the
PCM isn't prepared, resetting again makes little sense.
Check the current altset and avoid unnecessary interface reset at EP
close.

Link: https://lore.kernel.org/r/20221009104212.18877-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/endpoint.c diff | blob | history
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