cifs: fix confusing debug message

commit a85ceafd41927e41a4103d228a993df7edd8823b upstream.

Since rc was initialised to -ENOMEM in cifs_get_smb_ses(), when an
existing smb session was found, free_xid() would be called and then
print

  CIFS: fs/cifs/connect.c: Existing tcp session with server found
  CIFS: fs/cifs/connect.c: VFS: in cifs_get_smb_ses as Xid: 44 with uid: 0
  CIFS: fs/cifs/connect.c: Existing smb sess found (status=1)
  CIFS: fs/cifs/connect.c: VFS: leaving cifs_get_smb_ses (xid = 44) rc = -12

Fix this by initialising rc to 0 and then let free_xid() print this
instead

  CIFS: fs/cifs/connect.c: Existing tcp session with server found
  CIFS: fs/cifs/connect.c: VFS: in cifs_get_smb_ses as Xid: 14 with uid: 0
  CIFS: fs/cifs/connect.c: Existing smb sess found (status=1)
  CIFS: fs/cifs/connect.c: VFS: leaving cifs_get_smb_ses (xid = 14) rc = 0

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 9db9527..ede655d 100644 (file)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2157,7 +2157,7 @@ cifs_set_cifscreds(struct smb3_fs_context *ctx __attribute__((unused)),
 struct cifs_ses *
 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx)
 {
-       int rc = -ENOMEM;
+       int rc = 0;
        unsigned int xid;
        struct cifs_ses *ses;
        struct sockaddr_in *addr = (struct sockaddr_in *)&server->dstaddr;
@@ -2206,6 +2206,8 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx)
                return ses;
        }
 
+       rc = -ENOMEM;
+
        cifs_dbg(FYI, "Existing smb sess not found\n");
        ses = sesInfoAlloc();
        if (ses == NULL)