[CIFS] Register and unregister cifs_spnego_key_type on module init/exit

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 14 insertions, 2 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index a6fbea57c4b1..94c0f55d7669 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -43,6 +43,7 @@
 #include "cifs_debug.h"
 #include "cifs_fs_sb.h"
 #include <linux/mm.h>
+#include <linux/key-type.h>
 #define CIFS_MAGIC_NUMBER 0xFF534D42    /* the first four bytes of SMB PDUs */
 
 #ifdef CONFIG_CIFS_QUOTA
@@ -1005,12 +1006,16 @@ init_cifs(void)
         rc = register_filesystem(&cifs_fs_type);
         if (rc)
                 goto out_destroy_request_bufs;
-
+#ifdef CONFIG_CIFS_UPCALL
+        rc = register_key_type(&cifs_spnego_key_type);
+        if (rc)
+                goto out_unregister_filesystem;
+#endif
         oplockThread = kthread_run(cifs_oplock_thread, NULL, "cifsoplockd");
         if (IS_ERR(oplockThread)) {
                 rc = PTR_ERR(oplockThread);
                 cERROR(1, ("error %d create oplock thread", rc));
-                goto out_unregister_filesystem;
+                goto out_unregister_key_type;
         }
 
         dnotifyThread = kthread_run(cifs_dnotify_thread, NULL, "cifsdnotifyd");
@@ -1024,7 +1029,11 @@ init_cifs(void)
 
  out_stop_oplock_thread:
         kthread_stop(oplockThread);
+ out_unregister_key_type:
+#ifdef CONFIG_CIFS_UPCALL
+        unregister_key_type(&cifs_spnego_key_type);
  out_unregister_filesystem:
+#endif
         unregister_filesystem(&cifs_fs_type);
  out_destroy_request_bufs:
         cifs_destroy_request_bufs();
@@ -1046,6 +1055,9 @@ exit_cifs(void)
 #ifdef CONFIG_PROC_FS
         cifs_proc_clean();
 #endif
+#ifdef CONFIG_CIFS_UPCALL
+        unregister_key_type(&cifs_spnego_key_type);
+#endif
         unregister_filesystem(&cifs_fs_type);
         cifs_destroy_inodecache();
         cifs_destroy_mids();