1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c
index 70c65a745923..3a4eb444a7c3 100644
--- a/drivers/media/radio/dsbr100.c
+++ b/drivers/media/radio/dsbr100.c
@@ -407,15 +407,18 @@ static int usb_dsbr100_open(struct inode *inode, struct file *file)
 {
         struct dsbr100_device *radio=video_get_drvdata(video_devdata(file));
 
+        lock_kernel();
         radio->users = 1;
         radio->muted = 1;
 
         if (dsbr100_start(radio)<0) {
                 warn("Radio did not start up properly");
                 radio->users = 0;
+                unlock_kernel();
                 return -EIO;
         }
         dsbr100_setfreq(radio, radio->curfreq);
+        unlock_kernel();
         return 0;
 }