On 2013-01-10 21:19, Takashi Iwai wrote:
> From: Takashi Iwai <ti...@suse.de>
> Subject: [PATCH v2] ALSA: usb-audio: Fix NULL dereference by access to
>  non-existing substream
> 
> The commit [0d9741c0: ALSA: usb-audio: sync ep init fix for
> audioformat mismatch] introduced the correction of parameters to be
> set for sync EP.  But since the new code assumes that the sync EP is
> always paired with the data EP of another direction, it triggers Oops
> when a device only with a single direction is used.
> 
> This patch adds a proper check of sync EP type and the presence of the
> paired substream for avoiding the crash.
> 
> Reported-by: Jens Axboe <ax...@kernel.dk>
> Signed-off-by: Takashi Iwai <ti...@suse.de>

Confirmed, it works. You can add my tested-by too. Thanks Takashi!

-- 
Jens Axboe

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to