The while loop is a post op, "while (i-- >= 0)" so the last iteration
will read camif_mbus_formats[-1] and then the loop will exit with "i"
set to -2 and so we do: "mf->code = camif_mbus_formats[-2];".
I've changed it to a pre-op, I've added a check to ensure we found the
right format and I've removed the "mf->code = camif_mbus_formats[i];"
because that is a no-op anyway.
Fixes: babde1c243b2 ("[media] V4L: Add driver for S3C24XX/S3C64XX SoC series camera interface")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/media/platform/s3c-camif/camif-capture.c b/drivers/media/platform/s3c-camif/camif-capture.c
index 437395a61065..012f4b389c55 100644
--- a/drivers/media/platform/s3c-camif/camif-capture.c
+++ b/drivers/media/platform/s3c-camif/camif-capture.c
@@ -1261,11 +1261,11 @@ static void __camif_subdev_try_format(struct camif_dev *camif,
/* FIXME: constraints against codec or preview path ? */
pix_lim = &variant->vp_pix_limits[VP_CODEC];
- while (i-- >= 0)
+ while (--i >= 0)
if (camif_mbus_formats[i] == mf->code)
break;
-
- mf->code = camif_mbus_formats[i];
+ if (i < 0)
+ return;
if (pad == CAMIF_SD_PAD_SINK) {
v4l_bound_align_image(&mf->width, 8, CAMIF_MAX_PIX_WIDTH,
--
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