[network-manager-applet/NMA_0_8_1] utils: don't crash if AP BSSID isn't available (rh #603236)

[Dan Williams <dcbw src gnome org>]

commit 8967f63ed08daaa40755337a1c4073b9dfde5807
Author: Dan Williams <dcbw redhat com>
Date:   Tue Jun 15 10:57:28 2010 -0700

    utils: don't crash if AP BSSID isn't available (rh #603236)
    
    Due to D-Bus issues, it may not be since it's retrieved on-the-fly
    from NM.  If for some reason it wasn't available, don't crash.

 src/utils/utils.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/utils/utils.c b/src/utils/utils.c
index 227c382..3af1adc 100644
--- a/src/utils/utils.c
+++ b/src/utils/utils.c
@@ -402,8 +402,10 @@ utils_check_ap_compatible (NMAccessPoint *ap,
 	setting_bssid = nm_setting_wireless_get_bssid (s_wireless);
 	if (setting_bssid) {
 		struct ether_addr ap_addr;
+		const char *hw_addr;
 
-		if (ether_aton_r (nm_access_point_get_hw_address (ap), &ap_addr)) {
+		hw_addr = nm_access_point_get_hw_address (ap);
+		if (hw_addr && ether_aton_r (hw_addr, &ap_addr)) {
 			if (memcmp (setting_bssid->data, &ap_addr, ETH_ALEN))
 				return FALSE;
 		}