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V4L/DVB (9912): em28xx: fix/improve em28xx locking schema
authorMauro Carvalho Chehab <mchehab@redhat.com>
Wed, 17 Dec 2008 01:04:56 +0000 (22:04 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Tue, 30 Dec 2008 11:39:14 +0000 (09:39 -0200)
commitc4b14c776834d7e80007088f12e0a133f0fe3fb1
tree24cfe20c1c2558e1c572a91718596f994a75b933tree | snapshot
parentacbf1232fd336376c1c0d31ca185567922ff1a04commit | diff
V4L/DVB (9912): em28xx: fix/improve em28xx locking schema

Changes/fixes on em28xx dev->lock:

- em28xx_init_dev() were unlocking without a previous lock;

- some read ioctls need to lock after the removal of KBL, since a write
  may be happening at the same time an ioctl is reading;

- keep the device locked during all device initialization;

- lock/unlock while reading/writing registers.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/video/em28xx/em28xx-video.c diff | blob | history
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