Mesa (master): glsl: initialise pointer to NULL

[Timothy Arceri]

Module: Mesa
Branch: master
Commit: 22cec6dc5e5a3060bc87f4a92871b4f6eef04632
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=22cec6dc5e5a3060bc87f4a92871b4f6eef04632

Author: Timothy Arceri <timothy.arceri at collabora.com>
Date:   Mon Aug 29 12:03:47 2016 +1000

glsl: initialise pointer to NULL

Fixes uninitialised warning and covery defect.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/compiler/glsl/lower_blend_equation_advanced.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/glsl/lower_blend_equation_advanced.cpp b/src/compiler/glsl/lower_blend_equation_advanced.cpp
index 1c095dd..a998df1 100644
--- a/src/compiler/glsl/lower_blend_equation_advanced.cpp
+++ b/src/compiler/glsl/lower_blend_equation_advanced.cpp
@@ -438,7 +438,7 @@ deref_output(ir_variable *var)
 static ir_function_signature *
 get_main(gl_linked_shader *sh)
 {
-   ir_function_signature *sig;
+   ir_function_signature *sig = NULL;
    /* We can't use _mesa_get_main_function_signature() because we don't
     * have a symbol table at this point.  Just go find main() by hand.
     */