[PATCH net-next] net: sched: gred: remove NULL check before free table->tab in gred_destroy()

[Zhengchao Shao]

The kfree invoked by gred_destroy_vq checks whether the input parameter
is empty. Therefore, gred_destroy() doesn't need to check table->tab.

Signed-off-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx>
---
 net/sched/sch_gred.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c
index e7af53f607bb..48da8ac8419e 100644
--- a/net/sched/sch_gred.c
+++ b/net/sched/sch_gred.c
@@ -911,10 +911,9 @@ static void gred_destroy(struct Qdisc *sch)
 	struct gred_sched *table = qdisc_priv(sch);
 	int i;
 
-	for (i = 0; i < table->DPs; i++) {
-		if (table->tab[i])
-			gred_destroy_vq(table->tab[i]);
-	}
+	for (i = 0; i < table->DPs; i++)
+		gred_destroy_vq(table->tab[i]);
+
 	gred_offload(sch, TC_GRED_DESTROY);
 	kfree(table->opt);
 }
-- 
2.17.1