si2quater: check return value of osmo_earfcn_del()

Change-Id: I227dad57737721c40a508f67616d9f5003bb1a3e
Fixes: CID#313584
---
M src/osmo-bsc/bts_vty.c
1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/osmo-bsc/bts_vty.c b/src/osmo-bsc/bts_vty.c
index 0ecb6d6..9ba3ac2 100644
--- a/src/osmo-bsc/bts_vty.c
+++ b/src/osmo-bsc/bts_vty.c
@@ -2078,7 +2078,9 @@
 
 	vty_out(vty, "%% Warning: not enough space in SI2quater (%u/%u used) for a given EARFCN %u%s",
 		bts->si2q_count, SI2Q_MAX_NUM, arfcn, VTY_NEWLINE);
-	osmo_earfcn_del(e, arfcn);
+
+	if (osmo_earfcn_del(e, arfcn) != 0)
+		vty_out(vty, "%% Failed to roll-back adding EARFCN %u%s", arfcn, VTY_NEWLINE);
 
 	return CMD_WARNING;
 }

