NFS: finish_automount() requires us to hold 2 refs to the mount record

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We must not return from nfs_d_automount() without holding 2 references
to the mount record. Doing so, will trigger the BUG() in finish_automount().
Also ensure that we don't try to reschedule the automount timer with
a negative or zero timeout value.

Fixes: 22a1ae9a93 ("NFS: If nfs_mountpoint_expiry_timeout < 0, do not expire submounts")
Cc: stable@vger.kernel.org # v5.5+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

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Trond Myklebust 2020-04-02 10:34:36 -04:00

parent 529af90576

commit 75da98586a

1 changed files with 7 additions and 5 deletions

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fs/nfs/namespace.c

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