net: Remove unnecessary returns from void function()s

This patch removes from net/ (but not any netfilter files)
all the unnecessary return; statements that precede the
last closing brace of void functions.

It does not remove the returns that are immediately
preceded by a label as gcc doesn't like that.

Done via:
$ grep -rP --include=*.[ch] -l "return;\n}" net/ | \
  xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }'

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/wimax/stack.c

@@ -320,7 +320,6 @@ void __wimax_state_change(struct wimax_dev *wimax_dev, enum wimax_st new_state)
 out:
 	d_fnend(3, dev, "(wimax_dev %p new_state %u [old %u]) = void\n",
 		wimax_dev, new_state, old_state);
-	return;
 }
 
 
@@ -362,7 +361,6 @@ void wimax_state_change(struct wimax_dev *wimax_dev, enum wimax_st new_state)
 	if (wimax_dev->state > __WIMAX_ST_NULL)
 		__wimax_state_change(wimax_dev, new_state);
 	mutex_unlock(&wimax_dev->mutex);
-	return;
 }
 EXPORT_SYMBOL_GPL(wimax_state_change);