[media] ioctl numbers are unsigned int

ioctl's number is unsigned int. Fix it at vidioc_default.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
index 39a8fb2..6c7d20f 100644
--- a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
+++ b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
@@ -1021,7 +1021,7 @@
 }
 
 static long solo_enc_default(struct file *file, void *fh,
-			bool valid_prio, int cmd, void *arg)
+			bool valid_prio, unsigned int cmd, void *arg)
 {
 	struct solo_enc_dev *solo_enc = video_drvdata(file);
 	struct solo_dev *solo_dev = solo_enc->solo_dev;