[gnome-keyring] gkm-gnome2-file: Fix leak in validate_buffer()

[Stefan Walter <stefw src gnome org>]

commit 5a98866f4b7c89451c95e8d559e8f2021c5e1456
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Mon Sep 15 19:20:34 2014 +0200

    gkm-gnome2-file: Fix leak in validate_buffer()
    
    'check' is allocated in this function but never freed.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=738508

 pkcs11/gnome2-store/gkm-gnome2-file.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/pkcs11/gnome2-store/gkm-gnome2-file.c b/pkcs11/gnome2-store/gkm-gnome2-file.c
index 53ad76d..d533fbb 100644
--- a/pkcs11/gnome2-store/gkm-gnome2-file.c
+++ b/pkcs11/gnome2-store/gkm-gnome2-file.c
@@ -309,6 +309,7 @@ validate_buffer (EggBuffer *buffer, gsize *offset)
        gsize n_hash, hash_offset;
        guint32 length;
        int algo;
+       gboolean valid;
 
        g_assert (buffer);
        g_assert (offset);
@@ -337,10 +338,10 @@ validate_buffer (EggBuffer *buffer, gsize *offset)
 
        check = g_malloc0 (n_hash);
        gcry_md_hash_buffer (algo, check, buffer->buf, length);
-       if (memcmp (check, hash, n_hash) != 0)
-               return FALSE;
+       valid = (memcmp (check, hash, n_hash) == 0);
+       g_free (check);
 
-       return TRUE;
+       return valid;
 }
 
 static gboolean