[file-roller] Fix _g_path_get_temp_work_dir memory leak

[Paolo Bacchilega <paobac src gnome org>]

commit 662b087dffe01796548fb57392f83ecd03ce782c
Author: David King <dking redhat com>
Date:   Thu Jul 16 10:33:38 2015 +0100

    Fix _g_path_get_temp_work_dir memory leak
    
    Found with Valgrind:
    
    ==9376== 19 bytes in 1 blocks are definitely lost in loss record 3,218
    of 17,916
    ==9376==    at 0x4C2BC50: malloc (in
    /usr/lib64/valgrind/vgpreload_memcheck-amd6
    4-linux.so)
    ==9376==    by 0x748B689: g_malloc (gmem.c:97)
    ==9376==    by 0x74A425E: g_strdup (gstrfuncs.c:356)
    ==9376==    by 0x41B8B7: _g_path_get_temp_work_dir (file-utils.c:100)
    ==9376==    by 0x4294AD: fr_command_cfile_extract
    (fr-command-cfile.c:350)
    ==9376==    by 0x4228B0: fr_command_extract (fr-command.c:311)
    ==9376==    by 0x4229FD: extract_from_archive (fr-command.c:1857)
    ==9376==    by 0x422C3F: _fr_command_extract (fr-command.c:2131)
    ==9376==    by 0x4236A3: _fr_command_extract_to_local
    (fr-command.c:2334)
    ==9376==    by 0x43E9B7: _fr_window_archive_extract_from_edata
    (fr-window.c:6395)
    ==9376==    by 0x446311: _fr_window_ask_overwrite_dialog
    (fr-window.c:6570)
    ==9376==    by 0x71FC30A: g_cclosure_marshal_VOID__ENUMv
    (gmarshal.c:1496)
    ==9376==    by 0x71FA0C3: _g_closure_invoke_va (gclosure.c:864)
    ==9376==    by 0x72142A0: g_signal_emit_valist (gsignal.c:3246)
    ==9376==    by 0x72148F1: g_signal_emit (gsignal.c:3393)
    ==9376==    by 0x71FA0C3: _g_closure_invoke_va (gclosure.c:864)
    ==9376==    by 0x72142A0: g_signal_emit_valist (gsignal.c:3246)
    ==9376==    by 0x72148F1: g_signal_emit (gsignal.c:3393)
    ==9376==    by 0x516918C: gtk_button_do_release (gtkbutton.c:1899)
    ==9376==    by 0x51691F7: gtk_real_button_released (gtkbutton.c:2017)
    
    https://bugzilla.gnome.org/show_bug.cgi?id=752476

 src/file-utils.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/file-utils.c b/src/file-utils.c
index 62a240e..008f37b 100644
--- a/src/file-utils.c
+++ b/src/file-utils.c
@@ -109,6 +109,7 @@ _g_path_get_temp_work_dir (const char *parent_folder)
 
         template = g_strconcat (best_folder, "/.fr-XXXXXX", NULL);
         result = mkdtemp (template);
+        g_free (best_folder);
 
         if ((result == NULL) || (*result == '\0')) {
                 g_free (template);