gallium/drivers: 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]>

2 files changed, 3 insertions, 3 deletions

diff --git a/src/gallium/drivers/softpipe/sp_state_shader.c b/src/gallium/drivers/softpipe/sp_state_shader.c
index 8ab2903dced..dce0404de5b 100644
--- a/src/gallium/drivers/softpipe/sp_state_shader.c
+++ b/src/gallium/drivers/softpipe/sp_state_shader.c
@@ -207,7 +207,7 @@ softpipe_create_vs_state(struct pipe_context *pipe,
    struct sp_vertex_shader *state;
 
    state = CALLOC_STRUCT(sp_vertex_shader);
-   if (state == NULL ) 
+   if (!state)
       goto fail;
 
    /* copy shader tokens, the ones passed in will go away.
@@ -269,7 +269,7 @@ softpipe_create_gs_state(struct pipe_context *pipe,
    struct sp_geometry_shader *state;
 
    state = CALLOC_STRUCT(sp_geometry_shader);
-   if (state == NULL )
+   if (!state)
       goto fail;
 
    state->shader = *templ;
diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c
index 3347f5f1883..52df89504b8 100644
--- a/src/gallium/drivers/softpipe/sp_texture.c
+++ b/src/gallium/drivers/softpipe/sp_texture.c
@@ -435,7 +435,7 @@ softpipe_transfer_map(struct pipe_context *pipe,
       map = spr->data;
    }
 
-   if (map == NULL) {
+   if (!map) {
       pipe_resource_reference(&pt->resource, NULL);
       FREE(spt);
       return NULL;