From f75d32b4ad1c36227fae618b3b5fd37f85c5291c Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 18 Aug 2012 18:55:41 +0300
Subject: [PATCH] --- yaml --- r: 322471 b: refs/heads/master c:
 25682362564fa0c950d9afe798def2ec9c3676a2 h: refs/heads/master i:   322469:
 7c4b546e72d80d9a4fd0286be5b9a4f616105f85   322467:
 6bc5cbd7c509e9319fa329e0ea8750764b726071   322463:
 f202676711ad7a82f7408dad02ab9511c26ed96e v: v3

---
 [refs]                                     | 2 +-
 trunk/drivers/video/mb862xx/mb862xxfbdrv.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 4753cc3c8fb2..c017a0d2f371 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 01817d194a5c078696ac4a31b5d8b99a6a9e40c7
+refs/heads/master: 25682362564fa0c950d9afe798def2ec9c3676a2
diff --git a/trunk/drivers/video/mb862xx/mb862xxfbdrv.c b/trunk/drivers/video/mb862xx/mb862xxfbdrv.c
index 00ce1f34b496..57d940be5f3d 100644
--- a/trunk/drivers/video/mb862xx/mb862xxfbdrv.c
+++ b/trunk/drivers/video/mb862xx/mb862xxfbdrv.c
@@ -328,6 +328,8 @@ static int mb862xxfb_ioctl(struct fb_info *fbi, unsigned int cmd,
 	case MB862XX_L1_SET_CFG:
 		if (copy_from_user(l1_cfg, argp, sizeof(*l1_cfg)))
 			return -EFAULT;
+		if (l1_cfg->dh == 0 || l1_cfg->dw == 0)
+			return -EINVAL;
 		if ((l1_cfg->sw >= l1_cfg->dw) && (l1_cfg->sh >= l1_cfg->dh)) {
 			/* downscaling */
 			outreg(cap, GC_CAP_CSC,