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authorAlexey Klimov <klimov.linux@gmail.com>2009-02-05 08:57:19 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:42:40 -0300
commit52433bbbef633047838dcc5a735ee241a05234a0 (patch)
tree9d3a11768f64a86bd0828dfe3c0f29fed7d5643f /drivers/media
parent1bb16d7156d7d6b7e357de561bf965fd65545bb0 (diff)
V4L/DVB (10461): radio-mr800: 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')
-rw-r--r--drivers/media/radio/radio-mr800.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index 25ccf21c469e..56f1fac6d28d 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -431,7 +431,10 @@ 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 = amradio_setfreq(radio, radio->curfreq);
if (retval < 0)
amradio_dev_warn(&radio->videodev->dev,
@@ -599,7 +602,9 @@ static int usb_amradio_close(struct file *file)
if (!radio)
return -ENODEV;
+ mutex_lock(&radio->lock);
radio->users = 0;
+ mutex_unlock(&radio->lock);
if (!radio->removed) {
retval = amradio_set_mute(radio, AMRADIO_STOP);