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authorAlexey Klimov <klimov.linux@gmail.com>2009-02-08 02:00:14 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:42:41 -0300
commitfdf9c9979a355916433262ea5e5e64bed5def86e (patch)
treedb185c51fa0cc5737e5399670bdba3014ba992b8 /drivers/media/radio/dsbr100.c
parentdc025d4a1afac9576987748f15e9ba47c7bd20db (diff)
downloadlinux-linaro-stable-fdf9c9979a355916433262ea5e5e64bed5def86e.tar.gz
V4L/DVB (10465): dsbr100: Add few lost mutex locks.
Patch adds two lost mutex locks. Signed-off-by: Alexey Klimov <klimov.linux@gmail.com> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio/dsbr100.c')
-rw-r--r--drivers/media/radio/dsbr100.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c
index 09988f020c48..cc54ed4efc48 100644
--- a/drivers/media/radio/dsbr100.c
+++ b/drivers/media/radio/dsbr100.c
@@ -452,7 +452,10 @@ static int vidioc_s_frequency(struct file *file, void *priv,
if (radio->removed)
return -EIO;
+ mutex_lock(&radio->lock);
radio->curfreq = f->frequency;
+ mutex_unlock(&radio->lock);
+
retval = dsbr100_setfreq(radio, radio->curfreq);
if (retval < 0)
dev_warn(&radio->usbdev->dev, "Set frequency failed\n");
@@ -603,7 +606,10 @@ static int usb_dsbr100_close(struct file *file)
if (!radio)
return -ENODEV;
+ mutex_lock(&radio->lock);
radio->users = 0;
+ mutex_unlock(&radio->lock);
+
if (!radio->removed) {
retval = dsbr100_stop(radio);
if (retval < 0) {