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| author | Takashi Iwai <tiwai@suse.de> | 2008-10-02 14:50:22 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-10-10 13:41:48 +0200 |
| commit | 7a17daae8ed71bf3259d905a4fc48a5b424fa935 (patch) | |
| tree | 98c6208065121b01b2332a181c3c17acc1cca547 | |
| parent | 669faba27f2f7b04b9228d20e30e7f584f0becd5 (diff) | |
| download | linux-7a17daae8ed71bf3259d905a4fc48a5b424fa935.tar.gz linux-7a17daae8ed71bf3259d905a4fc48a5b424fa935.tar.bz2 linux-7a17daae8ed71bf3259d905a4fc48a5b424fa935.zip | |
ALSA: usb - Fix possible Oops at USB-MIDI disconnection
The endpoints should be released immediately at disconnection
rather than the delayed release. This could be a reason of Oops
at USB-audio device disconnection being used.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
| -rw-r--r-- | sound/usb/usbmidi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index c0c7770198ad..5962e4b84423 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -1112,6 +1112,15 @@ void snd_usbmidi_disconnect(struct list_head* p) } if (ep->in) usb_kill_urb(ep->in->urb); + /* free endpoints here; later call can result in Oops */ + if (ep->out) { + snd_usbmidi_out_endpoint_delete(ep->out); + ep->out = NULL; + } + if (ep->in) { + snd_usbmidi_in_endpoint_delete(ep->in); + ep->in = NULL; + } } del_timer_sync(&umidi->error_timer); } |