1 files changed, 33 insertions, 0 deletions
diff --git a/libre-multilib/lib32-opencl-mesa/0001-i965-Remove-early-release-of-DRI2-miptree.patch b/libre-multilib/lib32-opencl-mesa/0001-i965-Remove-early-release-of-DRI2-miptree.patch
new file mode 100644
index 000000000..2cd33eedd
--- /dev/null
+++ b/libre-multilib/lib32-opencl-mesa/0001-i965-Remove-early-release-of-DRI2-miptree.patch
@@ -0,0 +1,33 @@
+From e2a696a4cd93c2dbe445243de48ed478fbdb8009 Mon Sep 17 00:00:00 2001
+From: Chris Wilson <chris@chris-wilson.co.uk>
+Date: Fri, 10 Jul 2015 10:41:35 +0100
+Subject: [PATCH] i965: Remove early release of DRI2 miptree
+
+intel_update_winsys_renderbuffer_miptree() will release the existing
+miptree when wrapping a new DRI2 buffer, so we can remove the early
+release and so prevent a NULL mt dereference should importing the new
+DRI2 name fail for any reason. (Reusing the old DRI2 name will result
+in the rendering going astray, to a stale buffer, and not shown on the
+screen, but it allows us to issue a warning and not crash much later in
+innocent code.)
+
+Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
+---
+ src/mesa/drivers/dri/i965/brw_context.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
+index e8d1396..72f3897 100644
+--- a/src/mesa/drivers/dri/i965/brw_context.c
++++ b/src/mesa/drivers/dri/i965/brw_context.c
+@@ -1388,7 +1388,6 @@ intel_process_dri2_buffer(struct brw_context *brw,
+               buffer->cpp, buffer->pitch);
+    }
+ 
+-   intel_miptree_release(&rb->mt);
+    bo = drm_intel_bo_gem_create_from_name(brw->bufmgr, buffer_name,
+                                           buffer->name);
+    if (!bo) {
+-- 
+2.5.0
+