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-rw-r--r--src/device-provider.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/device-provider.c b/src/device-provider.c
index 05c6cd0..5ccf588 100644
--- a/src/device-provider.c
+++ b/src/device-provider.c
@@ -62,9 +62,18 @@ indicator_power_device_provider_default_init (IndicatorPowerDeviceProviderInterf
GList *
indicator_power_device_provider_get_devices (IndicatorPowerDeviceProvider * self)
{
+ GList * devices;
+ IndicatorPowerDeviceProviderInterface * iface;
+
g_return_val_if_fail (INDICATOR_IS_POWER_DEVICE_PROVIDER (self), NULL);
+ iface = INDICATOR_POWER_DEVICE_PROVIDER_GET_INTERFACE (self);
+
+ if (iface->get_devices != NULL)
+ devices = iface->get_devices (self);
+ else
+ devices = NULL;
- return INDICATOR_POWER_DEVICE_PROVIDER_GET_INTERFACE (self)->get_devices (self);
+ return devices;
}
/**