diff options
| author | Clemens Ladisch <clemens@ladisch.de> | 2011-10-15 23:19:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:44:02 -0800 |
| commit | 427d615a29d6d629c843f2e0756a0cacd3844f22 (patch) | |
| tree | ba20557ee9bd3cece8b7980d7ade288616b0910a /sound/pci/hda/patch_sigmatel.c | |
| parent | e2e70d61f72a03751e0b44e4d2630ce5fdf158c4 (diff) | |
ALSA: ua101: fix crash when unplugging
commit 862a6244eb9f9f5123fe819454fcfcae0ee1f2f9 upstream.
If the device is unplugged while running, it is possible for a PCM
device to be closed after the disconnect callback has returned. This
means that kill_stream_urb() and disable_iso_interface() would try to
access already-invalid or freed USB data structures.
The function free_usb_related_resources() was intended to prevent this,
but forgot to clear the affected variables.
Reported-and-tested-by: Olivier Courtay <olivier@courtay.org>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_sigmatel.c')
0 files changed, 0 insertions, 0 deletions