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>
diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c
index 09988f0..cc54ed4 100644
--- a/drivers/media/radio/dsbr100.c
+++ b/drivers/media/radio/dsbr100.c
@@ -452,7 +452,10 @@
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 @@
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) {