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| author | Arnd Bergmann <arnd@arndb.de> | 2011-03-02 17:15:15 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-21 20:32:41 -0300 |
| commit | 0cd301f19a91b3e1fb4130dcd9106777003ed4ed (patch) | |
| tree | 5c6f30efc843196c15618a78f68cf22049caf8d5 /drivers/staging/cx25821/cx25821-alsa.c | |
| parent | dc46b8c8e3d7e6c7c7ddb78fc2137a5462e98679 (diff) | |
| download | op-kernel-dev-0cd301f19a91b3e1fb4130dcd9106777003ed4ed.zip op-kernel-dev-0cd301f19a91b3e1fb4130dcd9106777003ed4ed.tar.gz | |
[media] staging/cx25721: serialize access to devlist
Out of the three files accessing the device list,
one uses a mutex, one uses the BKL and one does
not have any locking. That is of course pointless,
so let's make all of them use the same mutex,
and get rid of one more BKL user.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Palash Bandyopadhyay <palash.bandyopadhyay@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/staging/cx25821/cx25821-alsa.c')
| -rw-r--r-- | drivers/staging/cx25821/cx25821-alsa.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/cx25821/cx25821-alsa.c b/drivers/staging/cx25821/cx25821-alsa.c index 160f669..ebdba7c 100644 --- a/drivers/staging/cx25821/cx25821-alsa.c +++ b/drivers/staging/cx25821/cx25821-alsa.c @@ -770,10 +770,12 @@ static int cx25821_alsa_init(void) struct cx25821_dev *dev = NULL; struct list_head *list; + mutex_lock(&cx25821_devlist_mutex); list_for_each(list, &cx25821_devlist) { dev = list_entry(list, struct cx25821_dev, devlist); cx25821_audio_initdev(dev); } + mutex_unlock(&cx25821_devlist_mutex); if (dev == NULL) pr_info("ERROR ALSA: no cx25821 cards found\n"); |
