ALSA: caiaq - Fix Oops with MIDI
The snd-usb-caiaq driver causes Oops occasionally when accessing MIDI
devices. This patch fixes the Oops and invalid URB submission errors
as well.
Cc: stable@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/caiaq/caiaq-device.h b/sound/usb/caiaq/caiaq-device.h
index f9fbdbae..ab56e73 100644
--- a/sound/usb/caiaq/caiaq-device.h
+++ b/sound/usb/caiaq/caiaq-device.h
@@ -75,6 +75,7 @@
wait_queue_head_t ep1_wait_queue;
wait_queue_head_t prepare_wait_queue;
int spec_received, audio_parm_answer;
+ int midi_out_active;
char vendor_name[CAIAQ_USB_STR_LEN];
char product_name[CAIAQ_USB_STR_LEN];