On Thu, Jul 11, 2013 at 5:05 AM, Ming Lei <ming.lei@xxxxxxxxxxxxx> wrote:
> Complete() will be run with interrupt enabled, so change to
> spin_lock_irqsave().
>
> Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
> Cc: linux-media@xxxxxxxxxxxxxxx
> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
> ---
> drivers/media/usb/em28xx/em28xx-core.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c
> index fc157af..0d698f9 100644
> --- a/drivers/media/usb/em28xx/em28xx-core.c
> +++ b/drivers/media/usb/em28xx/em28xx-core.c
> @@ -941,6 +941,7 @@ static void em28xx_irq_callback(struct urb *urb)
> {
> struct em28xx *dev = urb->context;
> int i;
> + unsigned long flags;
>
> switch (urb->status) {
> case 0: /* success */
> @@ -956,9 +957,9 @@ static void em28xx_irq_callback(struct urb *urb)
> }
>
> /* Copy data from URB */
> - spin_lock(&dev->slock);
> + spin_lock_irqsave(&dev->slock, flags);
> dev->usb_ctl.urb_data_copy(dev, urb);
> - spin_unlock(&dev->slock);
> + spin_unlock_irqrestore(&dev->slock, flags);
>
> /* Reset urb buffers */
> for (i = 0; i < urb->number_of_packets; i++) {
> --
> 1.7.9.5
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at http://vger.kernel.org/majordomo-info.html
I actually stumbled across this a couple of weeks ago, and have had an
identical patch running in a local dev tree.
Reviewed-by: Devin Heitmueller <dheitmueller@xxxxxxxxxxxxxx>
Tested-by: Devin Heitmueller <dheitmueller@xxxxxxxxxxxxxx>
--
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
