ALSA: usb: Only get AudioControl header for UAC1 class.

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The control header needs to be read from buffer at this point only
in the case of UAC1 protocol. Move it inside the switch case as other
protocols such as the Basic Audio Device spec will have an empty buffer
that is latter filled as inferred.

Signed-off-by: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk>
[Ruslan: updated with recently added sanity checks]
Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Jorge Sanjuan 2018-05-04 04:24:01 +03:00 • committed by Takashi Iwai

parent eda553f432

commit 3763f61867

1 changed files with 19 additions and 20 deletions

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39

sound/usb/card.c

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