diff options
| author | Andy Walls <awalls@md.metrocast.net> | 2010-07-19 08:19:43 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-09 06:42:55 +0400 |
| commit | dbe83a3b921328e12b2abe894fc692afba293d7f (patch) | |
| tree | e13443d29b6b929a61584b06dec5f3eff84e2111 /drivers/media/video/cx23885/cx23885-video.c | |
| parent | 98d109f90fc02ce8baf1c2471ffcf8d66fb0d8e6 (diff) | |
| download | linux-dbe83a3b921328e12b2abe894fc692afba293d7f.tar.xz | |
V4L/DVB: cx23885: Protect PCI interrupt mask manipulations with a spinlock
This patch encapsulates access to the PCI_INT_MSK register and
dev->pci_irqmask variable and protects them with a spinlock.
This is needed because both the hard IRQ handler and a workhandler
will need to manipulate the mask to disable the AV_CORE interrupt.
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx23885/cx23885-video.c')
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-video.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index 25194553c529..da66e5f8d91d 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -441,7 +441,7 @@ static int cx23885_start_video_dma(struct cx23885_dev *dev, q->count = 1; /* enable irq */ - cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01); + cx23885_irq_add_enable(dev, 0x01); cx_set(VID_A_INT_MSK, 0x000011); /* start dma */ @@ -1465,7 +1465,7 @@ static const struct v4l2_file_operations radio_fops = { void cx23885_video_unregister(struct cx23885_dev *dev) { dprintk(1, "%s()\n", __func__); - cx_clear(PCI_INT_MSK, 1); + cx23885_irq_remove(dev, 0x01); if (dev->video_dev) { if (video_is_registered(dev->video_dev)) @@ -1502,7 +1502,8 @@ int cx23885_video_register(struct cx23885_dev *dev) VID_A_DMA_CTL, 0x11, 0x00); /* Don't enable VBI yet */ - cx_set(PCI_INT_MSK, 1); + + cx23885_irq_add_enable(dev, 0x01); if (TUNER_ABSENT != dev->tuner_type) { struct v4l2_subdev *sd = NULL; |