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author | Takashi Iwai <tiwai@suse.de> | 2010-04-16 10:03:42 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2010-04-16 10:03:42 +0200 |
commit | 872d65f674a8a420fdfe656cd66d1fa8e60f41a7 (patch) | |
tree | b2b88fba5b97213a8d8908a1fd9536cefc00e574 /sound/usb | |
parent | d336905e00f208bcb89c719022c11dd3d976597a (diff) | |
parent | b68b58fd6a341c2115ff5fb466fe9fc0b581980e (diff) | |
download | linux-stable-872d65f674a8a420fdfe656cd66d1fa8e60f41a7.tar.gz linux-stable-872d65f674a8a420fdfe656cd66d1fa8e60f41a7.tar.bz2 linux-stable-872d65f674a8a420fdfe656cd66d1fa8e60f41a7.zip |
Merge branch 'fix/misc' into for-linus
Diffstat (limited to 'sound/usb')
-rw-r--r-- | sound/usb/usbmidi.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 2c59afd99611..9e28b20cb2ce 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -986,6 +986,8 @@ static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream) DEFINE_WAIT(wait); long timeout = msecs_to_jiffies(50); + if (ep->umidi->disconnected) + return; /* * The substream buffer is empty, but some data might still be in the * currently active URBs, so we have to wait for those to complete. @@ -1123,14 +1125,21 @@ static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi* umidi, * Frees an output endpoint. * May be called when ep hasn't been initialized completely. */ -static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint* ep) +static void snd_usbmidi_out_endpoint_clear(struct snd_usb_midi_out_endpoint *ep) { unsigned int i; for (i = 0; i < OUTPUT_URBS; ++i) - if (ep->urbs[i].urb) + if (ep->urbs[i].urb) { free_urb_and_buffer(ep->umidi, ep->urbs[i].urb, ep->max_transfer); + ep->urbs[i].urb = NULL; + } +} + +static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint *ep) +{ + snd_usbmidi_out_endpoint_clear(ep); kfree(ep); } @@ -1262,15 +1271,18 @@ void snd_usbmidi_disconnect(struct list_head* p) usb_kill_urb(ep->out->urbs[j].urb); if (umidi->usb_protocol_ops->finish_out_endpoint) umidi->usb_protocol_ops->finish_out_endpoint(ep->out); + ep->out->active_urbs = 0; + if (ep->out->drain_urbs) { + ep->out->drain_urbs = 0; + wake_up(&ep->out->drain_wait); + } } if (ep->in) for (j = 0; j < INPUT_URBS; ++j) usb_kill_urb(ep->in->urbs[j]); /* free endpoints here; later call can result in Oops */ - if (ep->out) { - snd_usbmidi_out_endpoint_delete(ep->out); - ep->out = NULL; - } + if (ep->out) + snd_usbmidi_out_endpoint_clear(ep->out); if (ep->in) { snd_usbmidi_in_endpoint_delete(ep->in); ep->in = NULL; |