[virt-viewer v2 13/13] events: don't leak GIOChannel when destroying IO handle

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virt_viewer_events_add_handle() creates a GIOChannel in order to watch the
fd it was given for changes.
virt_viewer_events_remove_handle() is freeing all the resources allocated by
virt_viewer_events_add_handle() except for this GIOChannel. This commit adds
the needed g_io_channel_unref() call to virt_viewer_events_remove_handle()

Based on commit 8e95b8d25a3eee6316aff2f83b0c449aaf10984a from
libvirt-glib.
Original author: Christophe Fergeau <cfergeau@xxxxxxxxxx>

Related to: rhbz#1243228
---
 src/virt-viewer-events.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/virt-viewer-events.c b/src/virt-viewer-events.c
index 44740c3..9636e3e 100644
--- a/src/virt-viewer-events.c
+++ b/src/virt-viewer-events.c
@@ -239,6 +239,10 @@ virt_viewer_events_remove_handle(int watch)
         data->events = 0;
     }
 
+    g_warn_if_fail(data->channel != NULL);
+    g_io_channel_unref(data->channel);
+    data->channel = NULL;
+
     /* since the actual watch deletion is done asynchronously, a update_handle call may
      * reschedule the watch before it's fully deleted, that's why we need to mark it as
      * 'removed' to prevent reuse
-- 
2.4.4

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