Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ALSA: usb: fcp: Use guard() for spin locks
Clean up the code using guard() for spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
+7
-10
+7
-10
sound/usb/fcp.c
+7
-10
sound/usb/fcp.c
···
820
820
{
821
821
struct usb_mixer_interface *mixer = hw->private_data;
822
822
struct fcp_data *private = mixer->private_data;
823
-
unsigned long flags;
824
823
long ret = 0;
825
824
u32 event;
826
825
···
831
832
if (ret)
832
833
return ret;
833
834
834
-
spin_lock_irqsave(&private->notify.lock, flags);
835
-
event = private->notify.event;
836
-
private->notify.event = 0;
837
-
spin_unlock_irqrestore(&private->notify.lock, flags);
835
+
scoped_guard(spinlock_irqsave, &private->notify.lock) {
836
+
event = private->notify.event;
837
+
private->notify.event = 0;
838
+
}
838
839
839
840
if (copy_to_user(buf, &event, sizeof(event)))
840
841
return -EFAULT;
···
945
946
}
946
947
947
948
if (data) {
948
-
unsigned long flags;
949
-
950
-
spin_lock_irqsave(&private->notify.lock, flags);
951
-
private->notify.event |= data;
952
-
spin_unlock_irqrestore(&private->notify.lock, flags);
949
+
scoped_guard(spinlock_irqsave, &private->notify.lock) {
950
+
private->notify.event |= data;
951
+
}
953
952
954
953
wake_up_interruptible(&private->notify.queue);
955
954
}