nfsd: Don't unlock the state while it's not locked

In the procedure of CREATE_SESSION, the state is locked after
alloc_conn_from_crses(). If the allocation fails, the function
goes to "out_free_session", and then "out" where there is an
unlock function.

Signed-off-by: Yanchuan Nian <ycnian@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 29924a0..cc41bf4 100644 (file)
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1844,11 +1844,12 @@ nfsd4_create_session(struct svc_rqst *rqstp,
 
        /* cache solo and embedded create sessions under the state lock */
        nfsd4_cache_create_session(cr_ses, cs_slot, status);
-out:
        nfs4_unlock_state();
+out:
        dprintk("%s returns %d\n", __func__, ntohl(status));
        return status;
 out_free_conn:
+       nfs4_unlock_state();
        free_conn(conn);
 out_free_session:
        __free_session(new);