]> git.baikalelectronics.ru Git - kernel.git/commit
V4L/DVB: drivers/media/video/pvrusb2: Add missing mutex_unlock
authorJulia Lawall <julia@diku.dk>
Tue, 29 Jun 2010 04:42:53 +0000 (01:42 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Mon, 2 Aug 2010 18:01:02 +0000 (15:01 -0300)
commitab075809e4c4e340b7572701b1913eac7f108526
treef8888ca8a6098dfb051c8ef1d684d879b12ebfb7
parent5dd63050e7fdfa1fdc851bd8ed494f904864b261
V4L/DVB: drivers/media/video/pvrusb2: Add missing mutex_unlock

Add a mutex_unlock missing on the error path.  In the other functions in
the same file the locks and unlocks of this mutex appear to be balanced,
so it would seem that the same should hold in this case.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression E1;
@@

* mutex_lock(E1,...);
  <+... when != E1
  if (...) {
    ... when != E1
*   return ...;
  }
  ...+>
* mutex_unlock(E1,...);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/video/pvrusb2/pvrusb2-ioread.c