X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=sound%2Fusb%2Fmidi.c;h=5bfb695547f832e22c8ad80042bf382292460e64;hb=66139a48cee1530c91f37c145384b4ee7043f0b7;hp=d3d49525a16bef649194ae410f64b72f243fc1f2;hpb=848a552893ff1fe071c57231edcd179cf84ec4f8;p=firefly-linux-kernel-4.4.55.git

diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index d3d49525a16b..5bfb695547f8 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -365,6 +365,8 @@ static void snd_usbmidi_error_timer(unsigned long data)
 		if (in && in->error_resubmit) {
 			in->error_resubmit = 0;
 			for (j = 0; j < INPUT_URBS; ++j) {
+				if (atomic_read(&in->urbs[j]->use_count))
+					continue;
 				in->urbs[j]->dev = umidi->dev;
 				snd_usbmidi_submit_urb(in->urbs[j], GFP_ATOMIC);
 			}