forked from Minki/linux
5a80415bca
The attached patch modifies the em28xx driver so that there can be ioctls from multiple different threads. This is necessary for capture apps like MPlayer that use different threads for capturing and channel tuning. Now the locking is only done for the ioctls that change properties of the device or access the i2c bus. It also removes some locks that look unnecessary: In em28xx_init_dev: the videodevice is not registered yet so nothing can access the hardware meanwhile, the device struct is not assigned to the interface yet so no race with disconnect is possible In em28xx_release_resources: it gets only called when dev->lock is already held Signed-off-by: Sascha Sommer <saschasommer@freenet.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> |
||
|---|---|---|
| .. | ||
| common | ||
| dvb | ||
| radio | ||
| video | ||
| Kconfig | ||
| Makefile | ||