[tracker/tracker-0.6] Fixes: NB#131278, Random tracker-indexer-71C9-11-2408.rcore crash observed.

[Martyn James Russell <mr src gnome org>]

commit df8bd11726a23bc54826ccbf01b21e918217ed78
Author: Martyn Russell <martyn lanedo com>
Date:   Fri Sep 11 12:28:00 2009 +0100

    Fixes: NB#131278, Random tracker-indexer-71C9-11-2408.rcore crash observed.

 src/libtracker-common/tracker-hal.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-common/tracker-hal.c b/src/libtracker-common/tracker-hal.c
index 283257c..314185a 100644
--- a/src/libtracker-common/tracker-hal.c
+++ b/src/libtracker-common/tracker-hal.c
@@ -1088,6 +1088,12 @@ hal_device_property_modified_cb (LibHalContext *context,
 			const gchar  *device_file;
 
 			volume = libhal_volume_from_udi (context, udi);
+			if (!volume) {
+				g_message ("HAL device:'%s' with udi:'%s' has NO LibHalVolume??",
+					   device_file, udi);
+				return;
+			}
+
 			mount_point = libhal_volume_get_mount_point (volume);
 			device_file = libhal_volume_get_device_file (volume);