If we are not in FULL_48BIT_PPGTT mode then we really shouldn't
continue on with our allocations, given that the call to free_dpd would
bail early without freeing everything, thus leaking memory.
Cc: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.a...@intel.com>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index fa583d5..6601b11 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -569,7 +569,8 @@ i915_page_directory_pointer *alloc_pdp(struct drm_device
*dev)
struct i915_page_directory_pointer *pdp;
int ret = -ENOMEM;
- WARN_ON(!USES_FULL_48BIT_PPGTT(dev));
+ if (WARN_ON(!USES_FULL_48BIT_PPGTT(dev)))
+ return ERR_PTR(-EINVAL);
pdp = kzalloc(sizeof(*pdp), GFP_KERNEL);
if (!pdp)
--
2.4.11
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