[dconf] dconf-update: don't leak fd on insuccessful write

[Ryan Lortie <ryanl src gnome org>]

commit 4c375030eb6254b757b6fa1bba6dbd0c5d69774f
Author: Ryan Lortie <desrt desrt ca>
Date:   Sun Jul 18 21:55:43 2010 -0400

    dconf-update: don't leak fd on insuccessful write

 bin/dconf-update.vala |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)
---
diff --git a/bin/dconf-update.vala b/bin/dconf-update.vala
index 9a81140..9ea6057 100644
--- a/bin/dconf-update.vala
+++ b/bin/dconf-update.vala
@@ -98,11 +98,16 @@ void maybe_update_from_directory (string dirname) throws GLib.Error {
 			throw new FileError.FAILED ("Can not open '%s' for replacement: %s", filename, strerror (saved_error));
 		}
 
-		table.write_contents (filename);
+		try {
+			table.write_contents (filename);
 
-		if (fd >= 0) {
-			Posix.write (fd, "\0\0\0\0\0\0\0\0", 8);
-			Posix.close (fd);
+			if (fd >= 0) {
+				Posix.write (fd, "\0\0\0\0\0\0\0\0", 8);
+			}
+		} finally {
+			if (fd >= 0) {
+				Posix.close (fd);
+			}
 		}
 
 		try {