sna: Mark upload buffers as unaccessible upon submission

Use valgrind to catch use-after-finish bugs. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-12-13 15:04:10 +00:00 · 2011-12-13 15:04:10 +00:00 · d2c6d950ed
parent e39ea29bcc
commit d2c6d950ed
1 changed files with 1 additions and 0 deletions
--- a/src/sna/kgem.c
+++ b/src/sna/kgem.c
@ -879,6 +879,7 @@ static void kgem_finish_partials(struct kgem *kgem)
 			bo->need_io = 0;
 		}

+		VG(VALGRIND_MAKE_MEM_NOACCESS(bo+1, bo->alloc));
 		kgem_bo_unref(kgem, &bo->base);
 	}
 }