V4L/DVB (8390): videodev: add comment and remove magic number. (c3fb62bf) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/media/video/videodev.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -2023,9 +2023,13 @@ EXPORT_SYMBOL(video_ioctl2);
		static int get_index(struct video_device *vdev, int num)
		{
		u32 used = 0;
		const unsigned max_index = sizeof(used) * 8 - 1;
		int i;

		if (num >= 32) {
		/* Currently a single v4l driver instance cannot create more than
		32 devices.
		Increase to u64 or an array of u32 if more are needed. */
		if (num > max_index) {
		printk(KERN_ERR "videodev: %s num is too large\n", __func__);
		return -EINVAL;
		}
		@@ -2045,7 +2049,7 @@ static int get_index(struct video_device *vdev, int num)
		}

		i = ffz(used);
		return i >= 32 ? -ENFILE : i;
		return i > max_index ? -ENFILE : i;
		}

		static const struct file_operations video_fops;