On 11-07-2013 13:06, Ming Lei wrote:
Complete() will be run with interrupt enabled, so change to spin_lock_irqsave().
Cc: Daniel Mack <zon...@gmail.com> Cc: Jaroslav Kysela <pe...@perex.cz> Cc: Takashi Iwai <ti...@suse.de> Cc: alsa-de...@alsa-project.org Signed-off-by: Ming Lei <ming....@canonical.com> --- sound/usb/caiaq/audio.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c index 7103b09..e5675ab 100644 --- a/sound/usb/caiaq/audio.c +++ b/sound/usb/caiaq/audio.c @@ -672,10 +672,11 @@ static void read_completed(struct urb *urb) offset += len; if (len > 0) { - spin_lock(&cdev->spinlock); + unsigned long flags;
Emoty line wouldn't hurt here, after declaration.
+ spin_lock_irqsave(&cdev->spinlock, flags); fill_out_urb(cdev, out, &out->iso_frame_desc[outframe]); read_in_urb(cdev, urb, &urb->iso_frame_desc[frame]); - spin_unlock(&cdev->spinlock); + spin_unlock_irqrestore(&cdev->spinlock, flags);
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