From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Fri, 1 Jun 2012 13:48:04 +0000 (+0200)
Subject: drm/vmwgfx: Fix nasty write past alloced memory area
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=0824db38e515644f8d1bfd64adbd7cb2c6ea7c62;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

drm/vmwgfx: Fix nasty write past alloced memory area

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c
index 51c9ba5cd2fb..21ee78226560 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmr.c
@@ -66,7 +66,7 @@ static int vmw_gmr2_bind(struct vmw_private *dev_priv,
 	cmd += sizeof(remap_cmd) / sizeof(uint32);
 
 	for (i = 0; i < num_pages; ++i) {
-		if (VMW_PPN_SIZE > 4)
+		if (VMW_PPN_SIZE <= 4)
 			*cmd = page_to_pfn(*pages++);
 		else
 			*((uint64_t *)cmd) = page_to_pfn(*pages++);