diff options
| author | Benjamin Coddington <bcodding@redhat.com> | 2019-05-09 07:25:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-31 06:47:35 -0700 |
| commit | de69696bd6f89151cfe9eb37f7c6fa088d504d10 (patch) | |
| tree | 1e2e87e76f54ad59316384f6343616fb4484bfc4 | |
| parent | 3d5e860adfb3901fde8300c91734d7480fc72d7a (diff) | |
NFS: Fix a double unlock from nfs_match,get_client
[ Upstream commit c260121a97a3e4df6536edbc2f26e166eff370ce ]
Now that nfs_match_client drops the nfs_client_lock, we should be
careful
to always return it in the same condition: locked.
Fixes: 950a578c6128 ("NFS: make nfs_match_client killable")
Reported-by: syzbot+228a82b263b5da91883d@syzkaller.appspotmail.com
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/nfs/client.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 65da2c105f43..0c7008fb6d5a 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -305,9 +305,9 @@ again: spin_unlock(&nn->nfs_client_lock); error = nfs_wait_client_init_complete(clp); nfs_put_client(clp); + spin_lock(&nn->nfs_client_lock); if (error < 0) return ERR_PTR(error); - spin_lock(&nn->nfs_client_lock); goto again; } |