EDMG: Validate pri channel lookup result before using it

At least in theory, hw_get_channel_freq() could return NULL, so add
error handling for that.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>

diff --git a/src/ap/hw_features.c b/src/ap/hw_features.c
index bb5404fa7dd4df6664d94a69e7f5f24d59f3aa84..4b66b02f4e16073196a78e924adefef962bebd88 100644 (file)
--- a/src/ap/hw_features.c
+++ b/src/ap/hw_features.c
@@ -838,6 +838,8 @@ static int hostapd_is_usable_edmg(struct hostapd_iface *iface)
                                       iface->freq, NULL,
                                       iface->hw_features,
                                       iface->num_hw_features);
+       if (!pri_chan)
+               return 0;
        hostapd_encode_edmg_chan(iface->conf->enable_edmg,
                                 iface->conf->edmg_channel,
                                 pri_chan->chan,