Check return value from hash_table_find before using it as a pointer
Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikk...@gmail.com>
---
src/glsl/loop_analysis.cpp | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/glsl/loop_analysis.cpp b/src/glsl/loop_analysis.cpp
index d6a9ac7..78ac300 100644
--- a/src/glsl/loop_analysis.cpp
+++ b/src/glsl/loop_analysis.cpp
@@ -589,8 +589,10 @@ 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())
- inc = NULL;
+ if (lv == NULL || !lv->is_loop_constant()) {
+ assert(lv != NULL);
+ inc = NULL;
+ }
} else
inc = NULL;
}
--
1.8.1.2
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