net: return operator cleanup

Change "return (EXPR);" to "return EXPR;"

return is not a function, parentheses are not required.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/irda/irnet/irnet_ppp.c b/net/irda/irnet/irnet_ppp.c
index dfe7b38..69f1fa6 100644
--- a/net/irda/irnet/irnet_ppp.c
+++ b/net/irda/irnet/irnet_ppp.c
@@ -166,7 +166,7 @@
     }
 
   /* Success : we have parsed all commands successfully */
-  return(count);
+  return count;
 }
 
 #ifdef INITIAL_DISCOVERY
@@ -300,7 +300,7 @@
 	}
 
       DEXIT(CTRL_TRACE, "\n");
-      return(strlen(event));
+      return strlen(event);
     }
 #endif /* INITIAL_DISCOVERY */
 
@@ -409,7 +409,7 @@
     }
 
   DEXIT(CTRL_TRACE, "\n");
-  return(strlen(event));
+  return strlen(event);
 }
 
 /*------------------------------------------------------------------*/
@@ -623,7 +623,7 @@
     mask |= irnet_ctrl_poll(ap, file, wait);
 
   DEXIT(FS_TRACE, " - mask=0x%X\n", mask);
-  return(mask);
+  return mask;
 }
 
 /*------------------------------------------------------------------*/