From 82ddeaf23cd930ee3ea34a3993c20de3932e6710 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sun, 17 Jul 2011 06:28:52 +0000
Subject: [PATCH] swconfig: avoid setting "NOVAL" attributes if "0" was
 provided as a value (backport of r27374)

SVN-Revision: 27626
---
 package/swconfig/src/swlib.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/package/swconfig/src/swlib.c b/package/swconfig/src/swlib.c
index c2316d0686..20e727eb53 100644
--- a/package/swconfig/src/swlib.c
+++ b/package/swconfig/src/swlib.c
@@ -397,6 +397,9 @@ int swlib_set_attr_string(struct switch_dev *dev, struct switch_attr *a, int por
 		val.value.ports = ports;
 		break;
 	case SWITCH_TYPE_NOVAL:
+		if (str && !strcmp(str, "0"))
+			return 0;
+
 		break;
 	default:
 		return -1;
-- 
2.30.2