diff options
author | Kees Cook <keescook@google.com> | 2016-02-13 11:08:06 +0300 |
---|---|---|
committer | Kees Cook <keescook@google.com> | 2016-03-05 16:25:50 +0000 |
commit | 9b364fa6f24a72429d0af92a6483c8d81f02e16f (patch) | |
tree | 3a6be5e000418dac84c6481ee84c1925fa709e25 | |
parent | 71c9957cdda3e992717696b9ad000619b7278340 (diff) | |
download | qcom-msm-v3.10-9b364fa6f24a72429d0af92a6483c8d81f02e16f.tar.gz |
UPSTREAM: 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>
Bug: 27300729
(cherry picked from commit 07d86ca93db7e5cdf4743564d98292042ec21af7)
Signed-off-by: Kees Cook <keescook@google.com>
Change-Id: I739fd205b5c6ab768add801f05fa7a9eef6a4a4f
-rw-r--r-- | sound/usb/midi.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/sound/usb/midi.c b/sound/usb/midi.c index 8e01fa4991c..a67e4cca73f 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -2243,7 +2243,6 @@ 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; } |