Prime objects have no backing filp to GEM mmap pages from. So, for Prime
objects, such operation is not permitted.
v1:
- Separate this patch from dma-buf patch set. (Joonas)
Signed-off-by: Tina Zhang <tina.zhang@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0628fb1..bb9d5ed 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1704,7 +1704,7 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
*/
if (!obj->base.filp) {
i915_gem_object_put(obj);
- return -EINVAL;
+ return -EPERM;
}
addr = vm_mmap(obj->base.filp, 0, args->size,
--
2.7.4
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