V4L/DVB (9306): dsbr100: Add frequency check

Add checking for frequency and printk if -1 returned.

Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c
index e88c58ea1b76..a5ca176a7b08 100644
--- a/drivers/media/radio/dsbr100.c
+++ b/drivers/media/radio/dsbr100.c
@@ -411,6 +411,7 @@ static int vidioc_s_audio(struct file *file, void *priv,
 static int usb_dsbr100_open(struct inode *inode, struct file *file)
 {
         struct dsbr100_device *radio = video_drvdata(file);
+        int retval;
 
         lock_kernel();
         radio->users = 1;
@@ -423,7 +424,12 @@ static int usb_dsbr100_open(struct inode *inode, struct file *file)
                 unlock_kernel();
                 return -EIO;
         }
-        dsbr100_setfreq(radio, radio->curfreq);
+
+        retval = dsbr100_setfreq(radio, radio->curfreq);
+
+        if (retval == -1)
+                printk(KERN_WARNING KBUILD_MODNAME ": Set frequency failed\n");
+
         unlock_kernel();
         return 0;
 }