When we allocate the GTT page-directory on !llc, we try to mark those
pages as using WC (via PAT). This may fail, so check and propagate the
error.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 6a036c068684..eebeb9a91631 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -409,7 +409,10 @@ static struct page *vm_alloc_page(struct i915_address_space *vm, gfp_t gfp)
if (unlikely(!pvec->nr))
return NULL;
- set_pages_array_wc(pvec->pages, pvec->nr);
+ if (unlikely(set_pages_array_wc(pvec->pages, pvec->nr))) {
+ __pagevec_release(pvec);
+ return NULL;
+ }
return pvec->pages[--pvec->nr];
}
--
2.15.1
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