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authorBobi Jam <bobijam.xu@intel.com>2017-01-28 19:05:03 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-03 13:01:38 +0100
commit098b325b8fc3bb1e000cadbae538e20cd1ee1fa7 (patch)
tree01ae0ba740c1bf45dbf59d7e38f9310030cebb33
parentff27098bba412fa2855c2567e6bfb6a80d86829c (diff)
downloadop-kernel-dev-098b325b8fc3bb1e000cadbae538e20cd1ee1fa7.zip
op-kernel-dev-098b325b8fc3bb1e000cadbae538e20cd1ee1fa7.tar.gz
staging: lustre: lov: ld_target could be NULL
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@intel.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@intel.com> Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/staging/lustre/lustre/lov/lov_object.c7
1 files changed, 7 insertions, 0 deletions
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);
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