From: Sven Verdoolaege <skimo@kotnet.org>
Date: Tue, 4 Jun 2013 12:27:57 +0000 (+0200)
Subject: isl_tab_pip.c: context_gbr_save: avoid invalid access on error path
X-Git-Tag: isl-0.12~14^2~11
X-Git-Url: http://review.tizen.org/git/?p=platform%2Fupstream%2Fisl.git;a=commitdiff_plain;h=3fa832fd9d5096cf155fa91127058d69f176362d

isl_tab_pip.c: context_gbr_save: avoid invalid access on error path

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
---

diff --git a/isl_tab_pip.c b/isl_tab_pip.c
index 6d8496e..7fb34c7 100644
--- a/isl_tab_pip.c
+++ b/isl_tab_pip.c
@@ -3222,6 +3222,9 @@ static void *context_gbr_save(struct isl_context *context)
 	struct isl_context_gbr *cgbr = (struct isl_context_gbr *)context;
 	struct isl_gbr_tab_undo *snap;
 
+	if (!cgbr->tab)
+		return NULL;
+
 	snap = isl_alloc_type(cgbr->tab->mat->ctx, struct isl_gbr_tab_undo);
 	if (!snap)
 		return NULL;