Because "i" is unsigned then "i-- >= 0" is always true. If we don't
find what we are looking for then we loop forever.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
Why do we count backwards anyway? Counting upwards is easier.
diff --git a/drivers/media/platform/s3c-camif/camif-regs.c b/drivers/media/platform/s3c-camif/camif-regs.c
index a9e3b16..ebf5b18 100644
--- a/drivers/media/platform/s3c-camif/camif-regs.c
+++ b/drivers/media/platform/s3c-camif/camif-regs.c
@@ -106,15 +106,15 @@ static const u32 src_pixfmt_map[8][2] = {
void camif_hw_set_source_format(struct camif_dev *camif)
{
struct v4l2_mbus_framefmt *mf = &camif->mbus_fmt;
- unsigned int i = ARRAY_SIZE(src_pixfmt_map);
+ int i;
u32 cfg;
- while (i-- >= 0) {
+ for (i = ARRAY_SIZE(src_pixfmt_map) - 1; i >= 0; i--) {
if (src_pixfmt_map[i][0] == mf->code)
break;
}
-
- if (i == 0 && src_pixfmt_map[i][0] != mf->code) {
+ if (i < 0) {
+ i = 0;
dev_err(camif->dev,
"Unsupported pixel code, falling back to %#08x\n",
src_pixfmt_map[i][0]);
--
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