[Mesa-dev] [PATCH 10/11] glsl: Add null check in loop_analysis.cpp

[Juha-Pekka Heikkila]

Check return value from hash_table_find before using it as a pointer

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
---
 src/glsl/loop_analysis.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/glsl/loop_analysis.cpp b/src/glsl/loop_analysis.cpp
index d6a9ac7..5e4eaa1 100644
--- a/src/glsl/loop_analysis.cpp
+++ b/src/glsl/loop_analysis.cpp
@@ -589,7 +589,7 @@ get_basic_induction_increment(ir_assignment *ir, hash_table *var_hash)
 	 loop_variable *lv =
 	    (loop_variable *) hash_table_find(var_hash, inc_var);
 
-	 if (!lv->is_loop_constant())
+      if (lv == NULL || !lv->is_loop_constant())
 	    inc = NULL;
       } else
 	 inc = NULL;
-- 
1.8.1.2