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ALSA: usb-audio: avoid freeing umidi object twice 

The 'umidi' object will be free'd on the error path by snd_usbmidi_free()
when tearing down the rawmidi interface. So we shouldn't try to free it
in snd_usbmidi_create() after having registered the rawmidi interface.

Found by KASAN.

Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Andrey Konovalov 2016-02-13 11:08:06 +03:00 committed by Takashi Iwai
parent 86c2ee1670
commit 07d86ca93d
1 changed files with 0 additions and 1 deletions
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sound/usb/midi.c
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@ -2455,7 +2455,6 @@ int snd_usbmidi_create(struct snd_card *card,
else
err = snd_usbmidi_create_endpoints(umidi, endpoints);
if (err < 0) {
snd_usbmidi_free(umidi);
return err;
}