wifi: Check we have valid wifi pointer in autoscan

The wifi pointer in device might be NULL if wpa_supplicant dies
between autoscans.

diff --git a/plugins/wifi.c b/plugins/wifi.c
index 3e48999..f1ee6da 100644 (file)
--- a/plugins/wifi.c
+++ b/plugins/wifi.c
@@ -502,6 +502,9 @@ static gboolean autoscan_timeout(gpointer data)
        struct autoscan_params *autoscan;
        int interval;
 
+       if (wifi == NULL)
+               return FALSE;
+
        autoscan = wifi->autoscan;
 
        if (autoscan->interval <= 0) {