[media] s3c-camif: forever loop in camif_hw_set_source_format()

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@oracle.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/media/platform/s3c-camif/camif-regs.c b/drivers/media/platform/s3c-camif/camif-regs.c
index a9e3b16460b8..ebf5b184cce4 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]);