libiwinfo: fix hw mode detection

SVN-Revision: 29417

diff --git a/package/iwinfo/src/iwinfo_wext.c b/package/iwinfo/src/iwinfo_wext.c
index 314882ad91829102995f5b0d8286fe23a9986ca5..283f77e9f8e805b3bf4449021709b28b68e315f6 100644 (file)
--- a/package/iwinfo/src/iwinfo_wext.c
+++ b/package/iwinfo/src/iwinfo_wext.c
@@ -428,6 +428,8 @@ int wext_get_hwmodelist(const char *ifname, int *buf)
        struct iwinfo_freqlist_entry *e = NULL;
        int len = 0;
 
+       *buf = 0;
+
        if( !wext_get_freqlist(ifname, chans, &len) )
        {
                for( e = (struct iwinfo_freqlist_entry *)chans; e->channel; e++ )