[PATCH net-2.6] cifs: Fix compile error without CONFIG_KEYS selected.

[Guo-Fu Tseng]

Hi Steve, David:

  I'm not sure where should this patch goes, since I see the error
in David's net-2.6 git, I submit it to netdev.

cifs: Fix compile error without CONFIG_KEYS selected.

fs/cifs/sess.c: In function "CIFS_SessSetup":
fs/cifs/sess.c:628: error: implicit declaration of function "key_revoke"

Signed-off-by: Guo-Fu Tseng <cooldavid at cooldavid.org>
---
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/fs/Kconfig b/fs/Kconfig
index abccb5d..717245f 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1863,6 +1863,7 @@ config CIFS
 	tristate "CIFS support (advanced network filesystem, SMBFS successor)"
 	depends on INET
 	select NLS
+	select KEYS
 	help
 	  This is the client VFS module for the Common Internet File System
 	  (CIFS) protocol which is the successor to the Server Message Block