[gnome-control-center] printers: Don't ask for samba password if not needed

[Marek Kašík <mkasik src gnome org>]

commit 1cadc214ef2f87957269d38c635fbdb3b9be9121
Author: Marek Kasik <mkasik redhat com>
Date:   Tue Feb 19 12:56:10 2013 +0100

    printers: Don't ask for samba password if not needed
    
    Ask for samba password only if returned directory is NULL
    and errno is set to EACCES.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694150

 panels/printers/pp-samba.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/panels/printers/pp-samba.c b/panels/printers/pp-samba.c
index 299c551..b8b47e7 100644
--- a/panels/printers/pp-samba.c
+++ b/panels/printers/pp-samba.c
@@ -345,7 +345,7 @@ list_dir (SMBCCTX      *smb_context,
       smbclient_opendir = smbc_getFunctionOpendir (smb_context);
 
       dir = smbclient_opendir (smb_context, dirname);
-      if (!dir)
+      if (!dir && errno == EACCES)
         {
           smbc_setFunctionAuthDataWithContext (smb_context, auth_fn);
           dir = smbclient_opendir (smb_context, dirname);