[Mesa-dev] [PATCH] glsl: don't leak memory when trying to count loop iterations

[Timothy Arceri]

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99789
---
 src/compiler/glsl/loop_controls.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/compiler/glsl/loop_controls.cpp b/src/compiler/glsl/loop_controls.cpp
index c717605..fa739af 100644
--- a/src/compiler/glsl/loop_controls.cpp
+++ b/src/compiler/glsl/loop_controls.cpp
@@ -90,23 +90,24 @@ calculate_iterations(ir_rvalue *from, ir_rvalue *to, ir_rvalue *increment,
 
    void *mem_ctx = ralloc_context(NULL);
 
    ir_expression *const sub =
       new(mem_ctx) ir_expression(ir_binop_sub, from->type, to, from);
 
    ir_expression *const div =
       new(mem_ctx) ir_expression(ir_binop_div, sub->type, sub, increment);
 
    ir_constant *iter = div->constant_expression_value();
-
-   if (iter == NULL)
+   if (iter == NULL) {
+      ralloc_free(mem_ctx);
       return -1;
+   }
 
    if (!iter->type->is_integer()) {
       const ir_expression_operation op = iter->type->is_double()
          ? ir_unop_d2i : ir_unop_f2i;
       ir_rvalue *cast =
          new(mem_ctx) ir_expression(op, glsl_type::int_type, iter, NULL);
 
       iter = cast->constant_expression_value();
    }
 
-- 
2.9.3