gpu: ipu-v3: fix div_ratio type
The variable can be negative.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
diff --git a/drivers/gpu/ipu-v3/ipu-csi.c b/drivers/gpu/ipu-v3/ipu-csi.c
index 3bdb705..06631ac 100644
--- a/drivers/gpu/ipu-v3/ipu-csi.c
+++ b/drivers/gpu/ipu-v3/ipu-csi.c
@@ -202,7 +202,7 @@
u32 ipu_clk)
{
u32 temp;
- u32 div_ratio;
+ int div_ratio;
div_ratio = (ipu_clk / pixel_clk) - 1;