From fdf9c9979a355916433262ea5e5e64bed5def86e Mon Sep 17 00:00:00 2001 From: Alexey Klimov Date: Sun, 8 Feb 2009 02:00:14 -0300 Subject: [PATCH] V4L/DVB (10465): dsbr100: Add few lost mutex locks. Patch adds two lost mutex locks. Signed-off-by: Alexey Klimov Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/dsbr100.c | 6 ++++++ 1 file changed, 6 insertions(+) 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) { -- 2.34.1