[PATCH 28/38] drm/i915: check for missing aperture in insert_mappable_node

[Matthew Auld]

From: CQ Tang <cq.tang at intel.com>

Signed-off-by: CQ Tang <cq.tang at intel.com>
Signed-off-by: Matthew Auld <matthew.auld at intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 2aa4fbe7edc0..af63d1a0af14 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -64,6 +64,9 @@ static int
 insert_mappable_node(struct i915_ggtt *ggtt,
                      struct drm_mm_node *node, u32 size)
 {
+	if (!ggtt->mappable_end)
+		return -ENOSPC;
+
 	memset(node, 0, sizeof(*node));
 	return drm_mm_insert_node_in_range(&ggtt->vm.mm, node,
 					   size, 0, I915_COLOR_UNEVICTABLE,
-- 
2.20.1