ALSA: usb-audio: Fix possible NULL dereference at create_yamaha_midi_quirk()

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The previous addition of descriptor validation may lead to a NULL
dereference at create_yamaha_midi_quirk() when either injd or outjd is
NULL.  Add proper non-NULL checks.

Fixes: 57f8770620 ("ALSA: usb-audio: More validations of descriptor units")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Takashi Iwai 2019-08-26 13:55:21 +02:00

parent e0ccdef926

commit 60849562a5

1 changed files with 2 additions and 2 deletions

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sound/usb/quirks.c

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