Mesa (master): util: Prevent transfer dangling pointer on map failure.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: b6b6b8f8bb56c2e010b9e126797b4e54c6875eb3
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b6b6b8f8bb56c2e010b9e126797b4e54c6875eb3

Author: José Fonseca <jfonseca at vmware.com>
Date:   Thu Feb  3 15:05:03 2011 +0000

util: Prevent transfer dangling pointer on map failure.

---

 src/gallium/auxiliary/util/u_inlines.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/gallium/auxiliary/util/u_inlines.h b/src/gallium/auxiliary/util/u_inlines.h
index fc4eb8f..0188327 100644
--- a/src/gallium/auxiliary/util/u_inlines.h
+++ b/src/gallium/auxiliary/util/u_inlines.h
@@ -235,6 +235,7 @@ pipe_buffer_map_range(struct pipe_context *pipe,
    map = pipe->transfer_map( pipe, *transfer );
    if (map == NULL) {
       pipe->transfer_destroy( pipe, *transfer );
+      *transfer = NULL;
       return NULL;
    }