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]>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/gallium/drivers/svga/svga_state_gs.c b/src/gallium/drivers/svga/svga_state_gs.c
index 0b336baee86..618bec248dd 100644
--- a/src/gallium/drivers/svga/svga_state_gs.c
+++ b/src/gallium/drivers/svga/svga_state_gs.c
@@ -72,7 +72,7 @@ compile_gs(struct svga_context *svga,
    enum pipe_error ret = PIPE_ERROR;
 
    variant = translate_geometry_program(svga, gs, key);
-   if (variant == NULL) {
+   if (!variant) {
       /* some problem during translation, try the dummy shader */
       const struct tgsi_token *dummy = get_dummy_geometry_shader();
       if (!dummy) {
@@ -82,7 +82,7 @@ compile_gs(struct svga_context *svga,
       FREE((void *) gs->base.tokens);
       gs->base.tokens = dummy;
       variant = translate_geometry_program(svga, gs, key);
-      if (variant == NULL) {
+      if (!variant) {
          return PIPE_ERROR;
       }
    }
@@ -181,7 +181,7 @@ emit_hw_gs(struct svga_context *svga, unsigned dirty)
    if (svga->curr.user_gs)
       assert(svga->curr.gs);
 
-   if (gs == NULL) {
+   if (!gs) {
       if (svga->state.hw_draw.gs != NULL) {
 
          /** The previous geometry shader is made inactive.