From: Andrea Azzarone <azzaro...@gmail.com>

Since make_surface() can fail we need to check the result before dereferencing 
it.
---
 src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c 
b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 23cb40f322..82baf7c356 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -714,6 +714,9 @@ miptree_create(struct brw_context *brw,
          ISL_SURF_USAGE_DEPTH_BIT | ISL_SURF_USAGE_TEXTURE_BIT,
          BO_ALLOC_BUSY, 0, NULL);
 
+      if (!mt)
+         return NULL;
+
       if (needs_separate_stencil(brw, mt, format) &&
           !make_separate_stencil_surface(brw, mt)) {
          intel_miptree_release(&mt);
-- 
2.17.0

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