net: eql: Use kzalloc instead of kmalloc/memset

Use kzalloc rather than duplicating its implementation, which
makes code simple and easy to understand.
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Link: https://lore.kernel.org/r/1650277333-31090-1-git-send-email-baihaowen@meizu.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/eql.c

@@ -425,14 +425,13 @@ static int eql_enslave(struct net_device *master_dev, slaving_request_t __user *
 	if ((master_dev->flags & IFF_UP) == IFF_UP) {
 		/* slave is not a master & not already a slave: */
 		if (!eql_is_master(slave_dev) && !eql_is_slave(slave_dev)) {
-			slave_t *s = kmalloc(sizeof(*s), GFP_KERNEL);
+			slave_t *s = kzalloc(sizeof(*s), GFP_KERNEL);
 			equalizer_t *eql = netdev_priv(master_dev);
 			int ret;
 
 			if (!s)
 				return -ENOMEM;
 
-			memset(s, 0, sizeof(*s));
 			s->dev = slave_dev;
 			s->priority = srq.priority;
 			s->priority_bps = srq.priority;