Trond Myklebust 108bb4afd3 NFSv4/flexfiles: Fix invalid deref in FF_LAYOUT_DEVID_NODE()
If the attempt to instantiate the mirror's layout DS pointer failed,
then that pointer may hold a value of type ERR_PTR(), so we need
to check that before we dereference it.

Fixes: 65990d1afbd2d ("pNFS/flexfiles: Fix a deadlock on LAYOUTGET")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-01 16:20:16 -05:00
..
2019-02-03 08:48:33 -08:00
2019-01-21 14:53:23 +01:00
2019-01-06 08:36:21 -05:00
2018-08-21 23:54:17 -04:00
2018-12-03 15:30:24 -06:00
\n
2018-12-27 17:00:35 -08:00
2018-12-31 09:41:37 -08:00
2018-11-30 14:56:14 -08:00
2018-08-17 16:20:28 -07:00
2018-09-29 22:47:48 -04:00
2019-02-13 11:53:45 -05:00
2018-05-22 14:27:52 -04:00
2019-02-25 09:35:49 -05:00
2018-11-05 14:57:05 -05:00
2018-05-22 14:27:52 -04:00
2019-01-07 08:53:32 +01:00
\n
2018-12-27 17:00:35 -08:00
2018-07-03 16:44:45 -04:00
2018-10-29 14:29:58 -07:00
2018-06-05 19:23:26 +02:00
2018-12-31 09:46:39 -08:00
2018-12-28 20:54:57 -08:00
2018-08-21 18:19:09 -07:00
2018-06-11 08:22:34 -07:00
2018-08-21 18:19:09 -07:00