[media] saa7134: add test after for loop

Add a check after the for loops to see if we found what we were looking
for or if we reached the end of the list.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c
index fae5e97a3eb2..f0b1573137f4 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/drivers/media/video/saa7134/saa7134-video.c
@@ -1871,9 +1871,12 @@ int saa7134_s_std_internal(struct saa7134_dev *dev, struct saa7134_fh *fh, v4l2_
                         else
                                 fixup = V4L2_STD_SECAM;
                 }
-                for (i = 0; i < TVNORMS; i++)
+                for (i = 0; i < TVNORMS; i++) {
                         if (fixup == tvnorms[i].id)
                                 break;
+                }
+                if (i == TVNORMS)
+                        return -EINVAL;
         }
 
         *id = tvnorms[i].id;
@@ -1997,9 +2000,12 @@ static int saa7134_g_tuner(struct file *file, void *priv,
         if (0 != t->index)
                 return -EINVAL;
         memset(t, 0, sizeof(*t));
-        for (n = 0; n < SAA7134_INPUT_MAX; n++)
+        for (n = 0; n < SAA7134_INPUT_MAX; n++) {
                 if (card_in(dev, n).tv)
                         break;
+        }
+        if (n == SAA7134_INPUT_MAX)
+                return -EINVAL;
         if (NULL != card_in(dev, n).name) {
                 strcpy(t->name, "Television");
                 t->type = V4L2_TUNER_ANALOG_TV;