V4L/DVB (9306): dsbr100: Add frequency check (b9f35737) · Commits · 戴 / test

Add checking for frequency and printk if -1 returned. Signed-off-by:

drivers/media/radio/dsbr100.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}