staging/lustre: Properly mark lmv_fid2path uarg argment as __user

This makes sparse happy too.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/lmv/lmv_obd.c

@@ -663,7 +663,8 @@ static int lmv_disconnect(struct obd_export *exp)
 	return rc;
 }
 
-static int lmv_fid2path(struct obd_export *exp, int len, void *karg, void *uarg)
+static int lmv_fid2path(struct obd_export *exp, int len, void *karg,
+			void __user *uarg)
 {
 	struct obd_device	*obddev = class_exp2obd(exp);
 	struct lmv_obd		*lmv = &obddev->u.lmv;