V4L/DVB: cx23885: Protect PCI interrupt mask manipulations with a spinlock

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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>

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Andy Walls 2010-07-19 01:19:43 -03:00 • committed by Mauro Carvalho Chehab

parent 98d109f90f

commit dbe83a3b92

5 changed files with 103 additions and 22 deletions

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17

drivers/media/video/cx23885/cx23885-cards.c

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94

drivers/media/video/cx23885/cx23885-core.c

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2

drivers/media/video/cx23885/cx23885-vbi.c

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7

drivers/media/video/cx23885/cx23885-video.c

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5

drivers/media/video/cx23885/cx23885.h

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