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Message-Id: <1485648328-2141-36-git-send-email-jsimmons@infradead.org>
Date: Sat, 28 Jan 2017 19:05:03 -0500
From: James Simmons <jsimmons@...radead.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
devel@...verdev.osuosl.org,
Andreas Dilger <andreas.dilger@...el.com>,
Oleg Drokin <oleg.drokin@...el.com>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Lustre Development List <lustre-devel@...ts.lustre.org>,
Bobi Jam <bobijam.xu@...el.com>,
James Simmons <jsimmons@...radead.org>
Subject: [PATCH 35/60] staging: lustre: lov: ld_target could be NULL
From: Bobi Jam <bobijam.xu@...el.com>
lov_device::ld_target[ost_idx] could be NULL if the OST target is
not filled in lov_device::ld_lov::lov_tgt_desc[ost_idx] yet.
Signed-off-by: Bobi Jam <bobijam.xu@...el.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8018
Reviewed-on: http://review.whamcloud.com/21411
Reviewed-by: Jinshan Xiong <jinshan.xiong@...el.com>
Reviewed-by: John L. Hammond <john.hammond@...el.com>
Reviewed-by: Oleg Drokin <oleg.drokin@...el.com>
Signed-off-by: James Simmons <jsimmons@...radead.org>
---
drivers/staging/lustre/lustre/lov/lov_object.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
index 9c4b5ab..977579c 100644
--- a/drivers/staging/lustre/lustre/lov/lov_object.c
+++ b/drivers/staging/lustre/lustre/lov/lov_object.c
@@ -266,6 +266,13 @@ static int lov_init_raid0(const struct lu_env *env, struct lov_device *dev,
if (result != 0)
goto out;
+ if (!dev->ld_target[ost_idx]) {
+ CERROR("%s: OST %04x is not initialized\n",
+ lov2obd(dev->ld_lov)->obd_name, ost_idx);
+ result = -EIO;
+ goto out;
+ }
+
subdev = lovsub2cl_dev(dev->ld_target[ost_idx]);
subconf->u.coc_oinfo = oinfo;
LASSERTF(subdev, "not init ost %d\n", ost_idx);
--
1.8.3.1
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