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path: root/drivers/media/radio/radio-mr800.c
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Diffstat (limited to 'drivers/media/radio/radio-mr800.c')
-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 a33717c4800..256cbeffdcb 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -469,16 +469,21 @@ static int usb_amradio_open(struct inode *inode, struct file *file)
{
struct amradio_device *radio = video_get_drvdata(video_devdata(file));
+ lock_kernel();
+
radio->users = 1;
radio->muted = 1;
if (amradio_start(radio) < 0) {
warn("Radio did not start up properly");
radio->users = 0;
+ unlock_kernel();
return -EIO;
}
if (amradio_setfreq(radio, radio->curfreq) < 0)
warn("Set frequency failed");
+
+ unlock_kernel();
return 0;
}