dql: make dql_init return void

dql_init always returned 0, and the only place that uses it
in network core code didn't care about the return value anyway.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Acked-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/dynamic_queue_limits.h

@@ -98,7 +98,7 @@ void dql_completed(struct dql *dql, unsigned int count);
 void dql_reset(struct dql *dql);
 
 /* Initialize dql state */
-int dql_init(struct dql *dql, unsigned hold_time);
+void dql_init(struct dql *dql, unsigned int hold_time);
 
 #endif /* _KERNEL_ */
 

lib/dynamic_queue_limits.c

@@ -127,12 +127,11 @@ void dql_reset(struct dql *dql)
 }
 EXPORT_SYMBOL(dql_reset);
 
-int dql_init(struct dql *dql, unsigned hold_time)
+void dql_init(struct dql *dql, unsigned int hold_time)
 {
 	dql->max_limit = DQL_MAX_LIMIT;
 	dql->min_limit = 0;
 	dql->slack_hold_time = hold_time;
 	dql_reset(dql);
-	return 0;
 }
 EXPORT_SYMBOL(dql_init);