From 5920b6b67988fc3977f43b39d8546cc20247bf31 Mon Sep 17 00:00:00 2001
From: Zack Rusin <zack@kde.org>
Date: Sat, 20 Jun 2009 21:36:40 -0400
Subject: pipebuffer: handle possible null pointer dereference

reported by clang static analyzer
---
 src/gallium/auxiliary/pipebuffer/pb_buffer_malloc.c   | 2 ++
 src/gallium/auxiliary/pipebuffer/pb_bufmgr_ondemand.c | 2 ++
 2 files changed, 4 insertions(+)

(limited to 'src/gallium/auxiliary/pipebuffer')

diff --git a/src/gallium/auxiliary/pipebuffer/pb_buffer_malloc.c b/src/gallium/auxiliary/pipebuffer/pb_buffer_malloc.c
index 0760d60716..6bdce5fcb0 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_buffer_malloc.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_buffer_malloc.c
@@ -53,6 +53,8 @@ static INLINE struct malloc_buffer *
 malloc_buffer(struct pb_buffer *buf)
 {
    assert(buf);
+   if (!buf)
+      return NULL;
    assert(buf->vtbl == &malloc_buffer_vtbl);
    return (struct malloc_buffer *)buf;
 }
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_ondemand.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_ondemand.c
index bc3093f620..cb32d25136 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_ondemand.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_ondemand.c
@@ -74,6 +74,8 @@ static INLINE struct pb_ondemand_buffer *
 pb_ondemand_buffer(struct pb_buffer *buf)
 {
    assert(buf);
+   if (!buf)
+      return NULL;
    assert(buf->vtbl == &pb_ondemand_buffer_vtbl);
    return (struct pb_ondemand_buffer *)buf;
 }
-- 
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