diff options
| -rw-r--r-- | drivers/media/radio/dsbr100.c | 6 |
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) { |