gallium/auxiliary: Sanitize NULL checks into canonical form

Use NULL tests of the form `if (ptr)' or `if (!ptr)'.
They do not depend on the definition of the symbol NULL.
Further, they provide the opportunity for the accidental
assignment, are clear and succinct.

Signed-off-by: Edward O'Callaghan <[email protected]>
Signed-off-by: Marek Olšák <[email protected]>

3 files changed, 3 insertions, 3 deletions

diff --git a/src/gallium/auxiliary/postprocess/pp_init.c b/src/gallium/auxiliary/postprocess/pp_init.c
index bdf66e6d63a..b9eff78bf4f 100644
--- a/src/gallium/auxiliary/postprocess/pp_init.c
+++ b/src/gallium/auxiliary/postprocess/pp_init.c
@@ -58,7 +58,7 @@ pp_init(struct pipe_context *pipe, const unsigned int *enabled,
 
    ppq = CALLOC(1, sizeof(struct pp_queue_t));
 
-   if (ppq == NULL) {
+   if (!ppq) {
       pp_debug("Unable to allocate memory for ppq.\n");
       goto error;
    }
diff --git a/src/gallium/auxiliary/postprocess/pp_mlaa.c b/src/gallium/auxiliary/postprocess/pp_mlaa.c
index 024a24895c8..a3f58b52f48 100644
--- a/src/gallium/auxiliary/postprocess/pp_mlaa.c
+++ b/src/gallium/auxiliary/postprocess/pp_mlaa.c
@@ -238,7 +238,7 @@ pp_jimenezmlaa_init_run(struct pp_queue_t *ppq, unsigned int n,
    tmp_text = CALLOC(sizeof(blend2fs_1) + sizeof(blend2fs_2) +
                      IMM_SPACE, sizeof(char));
 
-   if (tmp_text == NULL) {
+   if (!tmp_text) {
       pp_debug("Failed to allocate shader space\n");
       return FALSE;
    }
diff --git a/src/gallium/auxiliary/postprocess/pp_run.c b/src/gallium/auxiliary/postprocess/pp_run.c
index caa2062f4cf..c6c7b88eea3 100644
--- a/src/gallium/auxiliary/postprocess/pp_run.c
+++ b/src/gallium/auxiliary/postprocess/pp_run.c
@@ -262,7 +262,7 @@ pp_tgsi_to_state(struct pipe_context *pipe, const char *text, bool isvs,
     */ 
    tokens = tgsi_alloc_tokens(PP_MAX_TOKENS);
 
-   if (tokens == NULL) {
+   if (!tokens) {
       pp_debug("Failed to allocate temporary token storage.\n");
       return NULL;
    }