3.16.7-ckt25 -stable review patch.  If anyone has any objections, please let me 
know.

---8<------------------------------------------------------------

From: Andrey Konovalov <andreyk...@gmail.com>

commit 07d86ca93db7e5cdf4743564d98292042ec21af7 upstream.

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 <andreyk...@gmail.com>
Acked-by: Clemens Ladisch <clem...@ladisch.de>
Signed-off-by: Takashi Iwai <ti...@suse.de>
Cc: Moritz Muehlenhoff <j...@inutil.org>
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
 sound/usb/midi.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index 70c97cc4574c..a160a6b110f5 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -2368,7 +2368,6 @@ 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;
        }
 

Reply via email to