media: cx231xx: use irqsave() in USB's complete callback

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The USB completion callback does not disable interrupts while acquiring
the lock. We want to remove the local_irq_disable() invocation from
__usb_hcd_giveback_urb() and therefore it is required for the callback
handler to disable the interrupts while acquiring the lock.
The callback may be invoked either in IRQ or BH context depending on the
USB host controller.
Use the _irqsave() variant of the locking primitives.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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Sebastian Andrzej Siewior 2018-07-10 12:18:29 -04:00 • committed by Mauro Carvalho Chehab

parent 988b3ae3e0

commit aa53bf0b03

3 changed files with 15 additions and 10 deletions

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10

drivers/media/usb/cx231xx/cx231xx-audio.c

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10

drivers/media/usb/cx231xx/cx231xx-core.c

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5

drivers/media/usb/cx231xx/cx231xx-vbi.c

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