Remove useless checks for NULL before freeing

This patch has been generated by the following Coccinelle semantic
patch:

// Remove useless checks for NULL before freeing
//
// free (NULL) is a no-op, so there is no need to avoid it

@@
expression E;
@@
+ free (E);
+ E = NULL;
- if (unlikely (E != NULL)) {
-   free(E);
(
-   E = NULL;
|
-   E = 0;
)
   ...
- }

@@
expression E;
type T;
@@
+ free ((T) E);
+ E = NULL;
- if (unlikely (E != NULL)) {
-   free((T) E);
(
-   E = NULL;
|
-   E = 0;
)
   ...
- }

@@
expression E;
@@
+ free (E);
- if (unlikely (E != NULL)) {
-   free (E);
- }

@@
expression E;
type T;
@@
+ free ((T) E);
- if (unlikely (E != NULL)) {
-   free ((T) E);
- }

Reviewed-by: Brian Paul <[email protected]>

1 files changed, 2 insertions, 4 deletions

diff --git a/src/mesa/program/prog_instruction.c b/src/mesa/program/prog_instruction.c
index f9a33d4effe..d69d7b2d465 100644
--- a/src/mesa/program/prog_instruction.c
+++ b/src/mesa/program/prog_instruction.c
@@ -127,10 +127,8 @@ _mesa_free_instructions(struct prog_instruction *inst, GLuint count)
 {
    GLuint i;
    for (i = 0; i < count; i++) {
-      if (inst[i].Data)
-         free(inst[i].Data);
-      if (inst[i].Comment)
-         free((char *) inst[i].Comment);
+      free(inst[i].Data);
+      free((char *)inst[i].Comment);
    }
    free(inst);
 }