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Commit 4ede00c9 authored by Dan Carpenter's avatar Dan Carpenter Committed by Dave Airlie
Browse files

vmwgfx: return -EFAULT if copy_to_user fails 



copy_to_user() returns the number of bytes remaining to be copied, but
we want to return a negative error code.  This gets copied to user
space.

Signed-off-by: default avatarDan Carpenter <error27@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 772a2f9b

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

+1 −0
Original line number Diff line number Diff line
@@ -972,6 +972,7 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, 
	ret = copy_from_user(rects, user_rects, rects_size);

	if (unlikely(ret != 0)) {

		DRM_ERROR("Failed to get rects.\n");

		ret = -EFAULT;

		goto out_free;

	}