[media] ivtv: avoid going past input/audio array

As reported by smatch:
	drivers/media/pci/ivtv/ivtv-driver.c:832 ivtv_init_struct2() error: buffer overflow 'itv->card->video_inputs' 6 <= 6

That happens because nof_inputs and nof_audio_inputs can be initialized
as IVTV_CARD_MAX_VIDEO_INPUTS, instead of IVTV_CARD_MAX_VIDEO_INPUTS - 1.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
index c2e60b4f292d1d8d9791b5c44b0fa76c0ffd854b..8616fa8193bca06bb806dc48b14d4e7dc6e21aef 100644 (file)
--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -805,11 +805,11 @@ static void ivtv_init_struct2(struct ivtv *itv)
 {
        int i;
 
-       for (i = 0; i < IVTV_CARD_MAX_VIDEO_INPUTS; i++)
+       for (i = 0; i < IVTV_CARD_MAX_VIDEO_INPUTS - 1; i++)
                if (itv->card->video_inputs[i].video_type == 0)
                        break;
        itv->nof_inputs = i;
-       for (i = 0; i < IVTV_CARD_MAX_AUDIO_INPUTS; i++)
+       for (i = 0; i < IVTV_CARD_MAX_AUDIO_INPUTS - 1; i++)
                if (itv->card->audio_inputs[i].audio_type == 0)
                        break;
        itv->nof_audio_inputs = i;