cifs: add function to get a tcon from cifs_sb

When we convert cifs to do multiple sessions per mount, we'll need more
than one tcon per superblock. At that point "cifs_sb->tcon" will make
no sense. Add a new accessor function that gets a tcon given a cifs_sb.
For now, it just returns cifs_sb->tcon. Later it'll do more.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 230410e0a453..c42d37fb5b7c 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3026,8 +3026,8 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
         int rc = 0;
         char *tmp;
 
-        if (cifs_sb->tcon)
-                cifs_put_tcon(cifs_sb->tcon);
+        if (cifs_sb_tcon(cifs_sb))
+                cifs_put_tcon(cifs_sb_tcon(cifs_sb));
 
         cifs_sb->tcon = NULL;
         tmp = cifs_sb->prepath;