pan/mdg: Return a bool from midgard_nir_lod_errata

To match other NIR passes.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6718>
diff --git a/src/panfrost/midgard/compiler.h b/src/panfrost/midgard/compiler.h
index f621840..b5a3703 100644
--- a/src/panfrost/midgard/compiler.h
+++ b/src/panfrost/midgard/compiler.h
@@ -665,7 +665,7 @@
 nir_undef_to_zero(nir_shader *shader);
 bool nir_fuse_io_16(nir_shader *shader);
 
-void midgard_nir_lod_errata(nir_shader *shader);
+bool midgard_nir_lod_errata(nir_shader *shader);
 
 unsigned midgard_get_first_tag_from_block(compiler_context *ctx, unsigned block_idx);
 
diff --git a/src/panfrost/midgard/midgard_errata_lod.c b/src/panfrost/midgard/midgard_errata_lod.c
index 55e2b23..bdd7e4c 100644
--- a/src/panfrost/midgard/midgard_errata_lod.c
+++ b/src/panfrost/midgard/midgard_errata_lod.c
@@ -24,7 +24,7 @@
 #include "compiler/nir/nir.h"
 #include "compiler/nir/nir_builder.h"
 
-void midgard_nir_lod_errata(nir_shader *shader);
+bool midgard_nir_lod_errata(nir_shader *shader);
 
 /* Workarounds errata pertaining to early Midgard chips where the settings for
  * min_lod/max_lod/lod_bias are ignored in the sampler descriptor when
@@ -73,7 +73,7 @@
         }
 }
 
-void
+bool
 midgard_nir_lod_errata(nir_shader *shader)
 {
         nir_foreach_function(function, shader) {
@@ -95,4 +95,5 @@
                 nir_metadata_preserve(function->impl, nir_metadata_block_index | nir_metadata_dominance);
 
         }
+        return true;
 }