msm: sde: detect zero width/height in validate



Detect zero length destination width and height in rotator
validation logic to avoid divide by zero issues.

CRs-Fixed: 2040975
Change-Id: I086b0cf9f3b628d30f9506acca82dffc0cc1d92c
Signed-off-by: Clarence Ip <cip@codeaurora.org>

parent cd167375

drivers/media/platform/msm/sde/rotator/sde_rotator_r3.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -2596,6 +2596,11 @@ static int sde_hw_rotator_validate_entry(struct sde_rot_mgr *mgr,
		}

		if ((src_w != dst_w) \|\| (src_h != dst_h)) {
		if (!dst_w \|\| !dst_h) {
		SDEROT_DBG("zero output width/height not support\n");
		ret = -EINVAL;
		goto dnsc_err;
		}
		if ((src_w % dst_w) \|\| (src_h % dst_h)) {
		SDEROT_DBG("non integral scale not support\n");
		ret = -EINVAL;