drivers/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/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index 17124f6..a3d7705 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -172,7 +172,7 @@
 
 	recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 
-	return (recv_ctx->sds_rings == NULL);
+	return recv_ctx->sds_rings == NULL;
 }
 
 static void