staging: lustre: llite: fix ifnullfree.cocci warnings

Author: kbuild test robot <fengguang.wu@intel.com>

drivers/staging/lustre/lustre/llite/dir.c:1440:3-8: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.

 NULL check before some freeing functions is not needed.

 Based on checkpatch warning
 "kfree(NULL) is safe this check is probably not required"
 and kfreeaddr.cocci by Julia Lawall.

Generated by: scripts/coccinelle/free/ifnullfree.cocci

CC: Julia Lawall 
Signed-off-by: Fengguang Wu 
Signed-off-by: Greg Kroah-Hartman 

---
 drivers/staging/lustre/lustre/llite/dir.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
 
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index 0f5d57c..f17154a 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -1436,8 +1436,7 @@ lmv_out_free:
 			goto free_lmv;
 		}
 free_lmv:
-		if (tmp)
-			kfree(tmp);
+		kfree(tmp);
 		return rc;
 	}
 	case LL_IOC_REMOVE_ENTRY: {