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Commit 3e85fd61 authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Takashi Iwai
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sound: sgio2audio/pdaudiocf/usb-audio: initialize PCM buffer


When allocating the PCM buffer, use vmalloc_user() instead of vmalloc().
Otherwise, it would be possible for applications to play the previous
contents of the kernel memory to the speakers, or to read it directly if
the buffer is exported to userspace.

Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
Cc: <stable@kernel.org>

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 2fbe74b9
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