[tracker/tracker-0.12] tracker-control: Fix crash when unable to get miner pause details

[Martyn James Russell <mr src gnome org>]

commit a63bebce10224f2b13183698d02aab5ad5659307
Author: JÃrg Billeter <j bitron ch>
Date:   Mon Oct 17 10:23:14 2011 +0200

    tracker-control: Fix crash when unable to get miner pause details

 src/tracker-control/tracker-control-miners.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/tracker-control/tracker-control-miners.c b/src/tracker-control/tracker-control-miners.c
index b683cf2..176152d 100644
--- a/src/tracker-control/tracker-control-miners.c
+++ b/src/tracker-control/tracker-control-miners.c
@@ -374,6 +374,12 @@ miner_pause_details (void)
 		                                 &pause_applications,
 		                                 &pause_reasons);
 
+		if (!pause_applications || !pause_reasons) {
+			/* unable to get pause details,
+			   already logged by tracker_miner_manager_is_paused */
+			continue;
+		}
+
 		if (!(*pause_applications) || !(*pause_reasons)) {
 			g_strfreev (pause_applications);
 			g_strfreev (pause_reasons);