Clear frequency list on empty value

Allow current frequency list of be cleared with an empty string value.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
index 5c9f39e..5ab1128 100644 (file)
--- a/wpa_supplicant/config.c
+++ b/wpa_supplicant/config.c
@@ -873,6 +873,10 @@ static int wpa_config_parse_scan_freq(const struct parse_data *data,
        freqs = wpa_config_parse_int_array(value);
        if (freqs == NULL)
                return -1;
+       if (freqs[0] == 0) {
+               os_free(freqs);
+               freqs = NULL;
+       }
        os_free(ssid->scan_freq);
        ssid->scan_freq = freqs;
 
@@ -889,6 +893,10 @@ static int wpa_config_parse_freq_list(const struct parse_data *data,
        freqs = wpa_config_parse_int_array(value);
        if (freqs == NULL)
                return -1;
+       if (freqs[0] == 0) {
+               os_free(freqs);
+               freqs = NULL;
+       }
        os_free(ssid->freq_list);
        ssid->freq_list = freqs;
 
@@ -2808,6 +2816,10 @@ static int wpa_config_process_freq_list(const struct global_parse_data *data,
        freqs = wpa_config_parse_int_array(value);
        if (freqs == NULL)
                return -1;
+       if (freqs[0] == 0) {
+               os_free(freqs);
+               freqs = NULL;
+       }
        os_free(config->freq_list);
        config->freq_list = freqs;
        return 0;