From cd458666a93fe9d07f3718e88f3169f01a11a63e Mon Sep 17 00:00:00 2001
From: Tomas Bzatek <tbzatek@redhat.com>
Date: Fri, 16 Apr 2021 18:36:16 +0200
Subject: [PATCH 7/8] udiskslinuxmdraidobject: Handle source attach failure
 gracefully

Only negligible theoretical chance to hit this, reported by Coverity.
---
 src/udiskslinuxmdraidobject.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/udiskslinuxmdraidobject.c b/src/udiskslinuxmdraidobject.c
index 20ca89c5..828c7058 100644
--- a/src/udiskslinuxmdraidobject.c
+++ b/src/udiskslinuxmdraidobject.c
@@ -468,7 +468,8 @@ watch_attr (UDisksLinuxDevice *device,
   GError *error = NULL;
   gchar *path = NULL;
   GIOChannel *channel = NULL;
-  GSource *ret = NULL;;
+  GSource *ret = NULL;
+  guint source_id;
 
   g_return_val_if_fail (UDISKS_IS_LINUX_DEVICE (device), NULL);
 
@@ -478,9 +479,14 @@ watch_attr (UDisksLinuxDevice *device,
     {
       ret = g_io_create_watch (channel, G_IO_ERR);
       g_source_set_callback (ret, callback, user_data, NULL);
-      g_source_attach (ret, g_main_context_get_thread_default ());
+      source_id = g_source_attach (ret, g_main_context_get_thread_default ());
       g_source_unref (ret);
       g_io_channel_unref (channel); /* the keeps a reference to this object */
+      if (source_id == 0)
+        {
+          /* something bad happened while attaching the source */
+          ret = NULL;
+        }
     }
   else
     {
-- 
2.30.2