diff options
Diffstat (limited to 'sound/usb/midi2.c')
| -rw-r--r-- | sound/usb/midi2.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/sound/usb/midi2.c b/sound/usb/midi2.c index 030569fda416..e6793f3bdfc3 100644 --- a/sound/usb/midi2.c +++ b/sound/usb/midi2.c @@ -160,15 +160,13 @@ static void output_urb_complete(struct urb *urb) { struct snd_usb_midi2_urb *ctx = urb->context; struct snd_usb_midi2_endpoint *ep = ctx->ep; - unsigned long flags; - spin_lock_irqsave(&ep->lock, flags); + guard(spinlock_irqsave)(&ep->lock); set_bit(ctx->index, &ep->urb_free); if (urb->status >= 0 && atomic_read(&ep->running)) submit_output_urbs_locked(ep); if (ep->urb_free == ep->urb_free_mask) wake_up(&ep->wait); - spin_unlock_irqrestore(&ep->lock, flags); } /* prepare for input submission: just set the buffer length */ @@ -189,10 +187,9 @@ static void input_urb_complete(struct urb *urb) { struct snd_usb_midi2_urb *ctx = urb->context; struct snd_usb_midi2_endpoint *ep = ctx->ep; - unsigned long flags; int len; - spin_lock_irqsave(&ep->lock, flags); + guard(spinlock_irqsave)(&ep->lock); if (ep->disconnected || urb->status < 0) goto dequeue; len = urb->actual_length; @@ -208,22 +205,18 @@ static void input_urb_complete(struct urb *urb) submit_input_urbs_locked(ep); if (ep->urb_free == ep->urb_free_mask) wake_up(&ep->wait); - spin_unlock_irqrestore(&ep->lock, flags); } /* URB submission helper; for both direction */ static void submit_io_urbs(struct snd_usb_midi2_endpoint *ep) { - unsigned long flags; - if (!ep) return; - spin_lock_irqsave(&ep->lock, flags); + guard(spinlock_irqsave)(&ep->lock); if (ep->direction == STR_IN) submit_input_urbs_locked(ep); else submit_output_urbs_locked(ep); - spin_unlock_irqrestore(&ep->lock, flags); } /* kill URBs for close, suspend and disconnect */ @@ -248,13 +241,12 @@ static void drain_urb_queue(struct snd_usb_midi2_endpoint *ep) { if (!ep) return; - spin_lock_irq(&ep->lock); + guard(spinlock_irq)(&ep->lock); atomic_set(&ep->running, 0); wait_event_lock_irq_timeout(ep->wait, ep->disconnected || ep->urb_free == ep->urb_free_mask, ep->lock, msecs_to_jiffies(500)); - spin_unlock_irq(&ep->lock); } /* release URBs for an EP */ |