[PATCH v3 28/37] drm/i915: check for missing aperture in insert_mappable_node

Matthew Auld
2019-08-09T22:26:34Z

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

Signed-off-by: CQ Tang <cq.tang@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@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,