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Dan reported the following static checker warning: drivers/gpu/drm/i915/selftests/i915_buddy.c:670 igt_buddy_alloc_range() error: we previously assumed 'block' could be null (see line 665) Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190815103210.11802-1-matthew.auld@intel.com