提交 7728124a 编写于 作者: I Imre Deak 提交者: Daniel Vetter

drm/i915: Fix user ptr check size in eb_relocate_vma()

Fix the sizeof(ptr) vs. sizeof(*ptr) typo.

Fixes: 2889caa9 ("drm/i915: Eliminate lots of iterations over the execobjects array")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: NImre Deak <imre.deak@intel.com>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170714151242.517-2-imre.deak@intel.com
(cherry picked from commit edd9003f)
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
上级 520eccdf
......@@ -1458,7 +1458,7 @@ static int eb_relocate_vma(struct i915_execbuffer *eb, struct i915_vma *vma)
* to read. However, if the array is not writable the user loses
* the updated relocation values.
*/
if (unlikely(!access_ok(VERIFY_READ, urelocs, remain*sizeof(urelocs))))
if (unlikely(!access_ok(VERIFY_READ, urelocs, remain*sizeof(*urelocs))))
return -EFAULT;
do {
......
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