On Sat 17 August 2013 18:25:02 Ming Lei wrote:
> Complete() will be run with interrupt enabled, so change to
> spin_lock_irqsave().
>
> Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
> Cc: Hans Verkuil <hans.verkuil@xxxxxxxxx>
> Cc: linux-media@xxxxxxxxxxxxxxx
> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
Acked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Regards,
Hans
> ---
> drivers/media/usb/cx231xx/cx231xx-audio.c | 10 ++++++----
> drivers/media/usb/cx231xx/cx231xx-core.c | 10 ++++++----
> drivers/media/usb/cx231xx/cx231xx-vbi.c | 5 +++--
> 3 files changed, 15 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/media/usb/cx231xx/cx231xx-audio.c b/drivers/media/usb/cx231xx/cx231xx-audio.c
> index 81a1d97..f6fa0af 100644
> --- a/drivers/media/usb/cx231xx/cx231xx-audio.c
> +++ b/drivers/media/usb/cx231xx/cx231xx-audio.c
> @@ -136,6 +136,7 @@ static void cx231xx_audio_isocirq(struct urb *urb)
> stride = runtime->frame_bits >> 3;
>
> for (i = 0; i < urb->number_of_packets; i++) {
> + unsigned long flags;
> int length = urb->iso_frame_desc[i].actual_length /
> stride;
> cp = (unsigned char *)urb->transfer_buffer +
> @@ -158,7 +159,7 @@ static void cx231xx_audio_isocirq(struct urb *urb)
> length * stride);
> }
>
> - snd_pcm_stream_lock(substream);
> + snd_pcm_stream_lock_irqsave(substream, flags);
>
> dev->adev.hwptr_done_capture += length;
> if (dev->adev.hwptr_done_capture >=
> @@ -173,7 +174,7 @@ static void cx231xx_audio_isocirq(struct urb *urb)
> runtime->period_size;
> period_elapsed = 1;
> }
> - snd_pcm_stream_unlock(substream);
> + snd_pcm_stream_unlock_irqrestore(substream, flags);
> }
> if (period_elapsed)
> snd_pcm_period_elapsed(substream);
> @@ -224,6 +225,7 @@ static void cx231xx_audio_bulkirq(struct urb *urb)
> stride = runtime->frame_bits >> 3;
>
> if (1) {
> + unsigned long flags;
> int length = urb->actual_length /
> stride;
> cp = (unsigned char *)urb->transfer_buffer;
> @@ -242,7 +244,7 @@ static void cx231xx_audio_bulkirq(struct urb *urb)
> length * stride);
> }
>
> - snd_pcm_stream_lock(substream);
> + snd_pcm_stream_lock_irqsave(substream, flags);
>
> dev->adev.hwptr_done_capture += length;
> if (dev->adev.hwptr_done_capture >=
> @@ -257,7 +259,7 @@ static void cx231xx_audio_bulkirq(struct urb *urb)
> runtime->period_size;
> period_elapsed = 1;
> }
> - snd_pcm_stream_unlock(substream);
> + snd_pcm_stream_unlock_irqrestore(substream,flags);
> }
> if (period_elapsed)
> snd_pcm_period_elapsed(substream);
> diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c
> index 4ba3ce0..593b397 100644
> --- a/drivers/media/usb/cx231xx/cx231xx-core.c
> +++ b/drivers/media/usb/cx231xx/cx231xx-core.c
> @@ -798,6 +798,7 @@ static void cx231xx_isoc_irq_callback(struct urb *urb)
> container_of(dma_q, struct cx231xx_video_mode, vidq);
> struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
> int i;
> + unsigned long flags;
>
> switch (urb->status) {
> case 0: /* success */
> @@ -813,9 +814,9 @@ static void cx231xx_isoc_irq_callback(struct urb *urb)
> }
>
> /* Copy data from URB */
> - spin_lock(&dev->video_mode.slock);
> + spin_lock_irqsave(&dev->video_mode.slock, flags);
> dev->video_mode.isoc_ctl.isoc_copy(dev, urb);
> - spin_unlock(&dev->video_mode.slock);
> + spin_unlock_irqrestore(&dev->video_mode.slock, flags);
>
> /* Reset urb buffers */
> for (i = 0; i < urb->number_of_packets; i++) {
> @@ -842,6 +843,7 @@ static void cx231xx_bulk_irq_callback(struct urb *urb)
> struct cx231xx_video_mode *vmode =
> container_of(dma_q, struct cx231xx_video_mode, vidq);
> struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode);
> + unsigned long flags;
>
> switch (urb->status) {
> case 0: /* success */
> @@ -857,9 +859,9 @@ static void cx231xx_bulk_irq_callback(struct urb *urb)
> }
>
> /* Copy data from URB */
> - spin_lock(&dev->video_mode.slock);
> + spin_lock_irqsave(&dev->video_mode.slock, flags);
> dev->video_mode.bulk_ctl.bulk_copy(dev, urb);
> - spin_unlock(&dev->video_mode.slock);
> + spin_unlock_irqrestore(&dev->video_mode.slock, flags);
>
> /* Reset urb buffers */
> urb->status = usb_submit_urb(urb, GFP_ATOMIC);
> diff --git a/drivers/media/usb/cx231xx/cx231xx-vbi.c b/drivers/media/usb/cx231xx/cx231xx-vbi.c
> index c027942..38e78f8 100644
> --- a/drivers/media/usb/cx231xx/cx231xx-vbi.c
> +++ b/drivers/media/usb/cx231xx/cx231xx-vbi.c
> @@ -306,6 +306,7 @@ static void cx231xx_irq_vbi_callback(struct urb *urb)
> struct cx231xx_video_mode *vmode =
> container_of(dma_q, struct cx231xx_video_mode, vidq);
> struct cx231xx *dev = container_of(vmode, struct cx231xx, vbi_mode);
> + unsigned long flags;
>
> switch (urb->status) {
> case 0: /* success */
> @@ -322,9 +323,9 @@ static void cx231xx_irq_vbi_callback(struct urb *urb)
> }
>
> /* Copy data from URB */
> - spin_lock(&dev->vbi_mode.slock);
> + spin_lock_irqsave(&dev->vbi_mode.slock, flags);
> dev->vbi_mode.bulk_ctl.bulk_copy(dev, urb);
> - spin_unlock(&dev->vbi_mode.slock);
> + spin_unlock_irqrestore(&dev->vbi_mode.slock, flags);
>
> /* Reset status */
> urb->status = 0;
>
--
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