ALSA: usx2y: Fix shmem initialization

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Currently us428ctls_shmem pages are allocated dynamically upon the
mmap call, but this is quite racy.  Since the shared memory itself is
mandatory for the mmap, let's allocate it at the beginning of the card
initialization.  Also, fix the initialization of the wait queue, too.

Link: https://lore.kernel.org/r/20210517131545.27252-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Takashi Iwai 2021-05-17 15:15:42 +02:00

parent c1f2484168

commit 64a06f195d

2 changed files with 10 additions and 9 deletions

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18

sound/usb/usx2y/usX2Yhwdep.c

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1

sound/usb/usx2y/usbusx2y.c

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