Unlike the other i915_gem_object create functions, _from_data() requires
the struct_mutex as it also allocates the backing storage and so
interacts with the common lists. Document this requirement.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_gem.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 2039798f4403..2bf139396660 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -5226,6 +5226,8 @@ i915_gem_object_create_from_data(struct drm_device *dev,
size_t bytes;
int ret;
+ lockdep_assert_held(&dev->struct_mutex);
+
obj = i915_gem_alloc_object(dev, PAGE_ALIGN(size));
if (IS_ERR_OR_NULL(obj))
return obj;
--
2.4.6
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