net_sched: fix a typo in tc_for_each_action()

It is harmless because all users pass 'a' to this macro.

Fixes: 00175aec941e ("net/sched: Macro instead of CONFIG_NET_CLS_ACT ifdef")
Cc: Amir Vadai <amir@vadai.me>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/act_api.h b/include/net/act_api.h
index 41e6a24..f53ee9d 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -193,7 +193,7 @@
 	(list_empty(&(_exts)->actions))
 
 #define tc_for_each_action(_a, _exts) \
-	list_for_each_entry(a, &(_exts)->actions, list)
+	list_for_each_entry(_a, &(_exts)->actions, list)
 
 #define tc_single_action(_exts) \
 	(list_is_singular(&(_exts)->actions))