[libgsystem] fileutils: Handle cancellable in tmpfile code

[Colin Walters <walters src gnome org>]

commit a2519612547354033f0d513a174f336896776fa8
Author: Colin Walters <walters verbum org>
Date:   Fri Jan 4 19:38:00 2013 -0500

    fileutils: Handle cancellable in tmpfile code
    
    Just noticed with self-code review.

 gsystem-file-utils.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gsystem-file-utils.c b/gsystem-file-utils.c
index 2fafbf4..312ea2f 100644
--- a/gsystem-file-utils.c
+++ b/gsystem-file-utils.c
@@ -310,6 +310,9 @@ gs_file_linkcopy_sync_data (GFile          *src,
       gs_free char *tmp_name = NULL;
       gs_unref_object GFile *tmp_dest = NULL;
 
+      if (g_cancellable_set_error_if_cancelled (cancellable, error))
+        goto out;
+
       tmp_name = gen_tmp_name (NULL, NULL);
       tmp_dest = g_file_get_child (dest_parent, tmp_name);