Trond Myklebust 9cd087dacd pnfs/flexfiles: Fix PTR_ERR() dereferences in ff_layout_track_ds_error ...

commit 8e04fdfadd upstream.

mirror->mirror_ds can be NULL if uninitialised, but can contain
a PTR_ERR() if call to GETDEVICEINFO failed.

Fixes: 65990d1afb ("pNFS/flexfiles: Fix a deadlock on LAYOUTGET")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # 4.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-07-26 09:10:55 +02:00

17 KiB

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