From 85b6731da5cd2ffd26d85e9ed037c225bac66e96 Mon Sep 17 00:00:00 2001
From: Michael McTernan <mike.mcternan@wavemobile.com>
Date: Fri, 19 Jun 2015 20:51:43 +0200
Subject: [PATCH] Fix GSM900 ARFCN range check

Allow ARFCN 0 to be used in GSM900 band.
---
 openbsc/src/libbsc/bsc_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/openbsc/src/libbsc/bsc_init.c b/openbsc/src/libbsc/bsc_init.c
index 374ad7b7..a63528c8 100644
--- a/openbsc/src/libbsc/bsc_init.c
+++ b/openbsc/src/libbsc/bsc_init.c
@@ -397,10 +397,10 @@ static int bootstrap_bts(struct gsm_bts *bts)
 		}
 		break;
 	case GSM_BAND_900:
-		if (bts->c0->arfcn < 1 ||
+		if (bts->c0->arfcn < 0 ||
 		   (bts->c0->arfcn > 124 && bts->c0->arfcn < 955) ||
 		    bts->c0->arfcn > 1023)  {
-			LOGP(DNM, LOGL_ERROR, "GSM900 channel must be between 1-124, 955-1023.\n");
+			LOGP(DNM, LOGL_ERROR, "GSM900 channel must be between 0-124, 955-1023.\n");
 			return -EINVAL;
 		}
 		break;