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-rw-r--r--src/mesa/main/pixel.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c
index f6f9c1173a1..ca6ecd7bfb6 100644
--- a/src/mesa/main/pixel.c
+++ b/src/mesa/main/pixel.c
@@ -150,13 +150,17 @@ validate_pbo_access(GLcontext *ctx, struct gl_pixelstore_attrib *pack,
GLboolean ok;
/* Note, need to use DefaultPacking and Unpack's buffer object */
- ctx->DefaultPacking.BufferObj = pack->BufferObj;
+ _mesa_reference_buffer_object(ctx,
+ &ctx->DefaultPacking.BufferObj,
+ pack->BufferObj);
ok = _mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
format, type, ptr);
/* restore */
- ctx->DefaultPacking.BufferObj = ctx->Shared->NullBufferObj;
+ _mesa_reference_buffer_object(ctx,
+ &ctx->DefaultPacking.BufferObj,
+ ctx->Shared->NullBufferObj);
if (!ok) {
_mesa_error(ctx, GL_INVALID_OPERATION,