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>
diff --git a/drivers/media/video/cx23885/cx23885-vbi.c b/drivers/media/video/cx23885/cx23885-vbi.c
index 708a8c7..c0b6038 100644
--- a/drivers/media/video/cx23885/cx23885-vbi.c
+++ b/drivers/media/video/cx23885/cx23885-vbi.c
@@ -74,7 +74,7 @@
q->count = 1;
/* enable irqs */
- cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
+ cx23885_irq_add_enable(dev, 0x01);
cx_set(VID_A_INT_MSK, 0x000022);
/* start dma */
