ceph: Free mdsc if alloc mdsc->mdsmap failed.

commit fb3101b6f0db9ae3f35dc8e6ec908d0af8cdf12e upstream.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 1ce14c1..63c789e 100644 (file)
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3044,8 +3044,10 @@ int ceph_mdsc_init(struct ceph_fs_client *fsc)
        fsc->mdsc = mdsc;
        mutex_init(&mdsc->mutex);
        mdsc->mdsmap = kzalloc(sizeof(*mdsc->mdsmap), GFP_NOFS);
-       if (mdsc->mdsmap == NULL)
+       if (mdsc->mdsmap == NULL) {
+               kfree(mdsc);
                return -ENOMEM;
+       }
 
        init_completion(&mdsc->safe_umount_waiters);
        init_waitqueue_head(&mdsc->session_close_wq);