Merge remote-tracking branch 'origin/released'

* origin/released:
  libxtrans fontconfig glproto libX11 libxcb xcbproto mesa xserver pixman xkeyboard-config git update 22 Dec 2013

Conflicts:
	mesalib/include/GL/glext.h
	mesalib/src/mesa/drivers/dri/common/dri_util.c
	mesalib/src/mesa/drivers/dri/swrast/swrast.c
	xorg-server/damageext/damageext.c
	xorg-server/dix/dispatch.c
	xorg-server/glx/glxdriswrast.c
	xorg-server/glx/indirect_dispatch.c
	xorg-server/glx/indirect_dispatch_swap.c
	xorg-server/glx/indirect_program.c
	xorg-server/glx/render2.c
	xorg-server/glx/render2swap.c
	xorg-server/hw/xwin/glx/gen_gl_wrappers.py
	xorg-server/hw/xwin/glx/glthunk.c
	xorg-server/hw/xwin/glx/indirect.c
	xorg-server/include/os.h
	xorg-server/present/present_request.c

1 files changed, 9 insertions, 5 deletions

diff --git a/mesalib/src/mesa/main/imports.c b/mesalib/src/mesa/main/imports.c
index 277e9476a..4afe156b0 100644
--- a/mesalib/src/mesa/main/imports.c
+++ b/mesalib/src/mesa/main/imports.c
@@ -168,6 +168,8 @@ _mesa_align_calloc(size_t bytes, unsigned long alignment)
  * \param ptr pointer to the memory to be freed.
  * The actual address to free is stored in the word immediately before the
  * address the client sees.
+ * Note that it is legal to pass NULL pointer to this function and will be
+ * handled accordingly.
  */
 void
 _mesa_align_free(void *ptr)
@@ -177,9 +179,11 @@ _mesa_align_free(void *ptr)
 #elif defined(_WIN32) && defined(_MSC_VER)
    _aligned_free(ptr);
 #else
-   void **cubbyHole = (void **) ((char *) ptr - sizeof(void *));
-   void *realAddr = *cubbyHole;
-   free(realAddr);
+   if (ptr) {
+      void **cubbyHole = (void **) ((char *) ptr - sizeof(void *));
+      void *realAddr = *cubbyHole;
+      free(realAddr);
+   }
 #endif /* defined(HAVE_POSIX_MEMALIGN) */
 }
 
@@ -199,8 +203,8 @@ _mesa_align_realloc(void *oldBuffer, size_t oldSize, size_t newSize,
    if (newBuf && oldBuffer && copySize > 0) {
       memcpy(newBuf, oldBuffer, copySize);
    }
-   if (oldBuffer)
-      _mesa_align_free(oldBuffer);
+
+   _mesa_align_free(oldBuffer);
    return newBuf;
 #endif
 }