tree 3bf65736b1ae105e16227110452aa72d2dc21847
parent 0cf4daee31d88086cf3508d1d8d1f4e451c27906
author Mauro Carvalho Chehab <mchehab@infradead.org> 1208110135 -0300
committer Mauro Carvalho Chehab <mchehab@infradead.org> 1209056979 -0300

V4L/DVB (7563): em28xx: Add missing checks

There are some cases where nobody is waiting for a buffer. Due to the
lack of check, if you try to abort the userspace app, machine were
hanging, since IRQ were trying to use a buffer that were disallocated.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>