Don't crash if the interface disappears just after appearing.

If the interface disappears between interfaceAdded() and
setInterfaceUp, we'll crash with an IllegalStateException in
NetworkManagementService#setInterfaceConfig.

Ignore the error instead. This should be safe because we don't
modify any state unless our calls succeed.

Bug: 62870779
Test: builds aosp_bullhead-eng
Change-Id: If8c2375f7fffe25a9fa79dc4f1981c745384a276
This commit is contained in:
Lorenzo Colitti
2017-06-23 01:21:25 +09:00
parent 62d5e744c3
commit 17f4e4a027

View File

@@ -208,7 +208,7 @@ class EthernetNetworkFactory {
InterfaceConfiguration config = mNMService.getInterfaceConfig(iface);
if (config == null) {
Log.e(TAG, "Null iterface config for " + iface + ". Bailing out.");
Log.e(TAG, "Null interface config for " + iface + ". Bailing out.");
return;
}
@@ -220,7 +220,9 @@ class EthernetNetworkFactory {
Log.e(TAG, "Interface unexpectedly changed from " + iface + " to " + mIface);
mNMService.setInterfaceDown(iface);
}
} catch (RemoteException e) {
} catch (RemoteException | IllegalStateException e) {
// Either the system is crashing or the interface has disappeared. Just ignore the
// error; we haven't modified any state because we only do that if our calls succeed.
Log.e(TAG, "Error upping interface " + mIface + ": " + e);
}
}