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staging/lustre/lmv: fix potential null pointer dereference

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In lmv_disconnect_mdc do procfs removal only if we actually know the name.

Reviewed-on: http://review.whamcloud.com/14605
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6517
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oleg Drokin 2015-09-14 18:41:22 -04:00 committed by Greg Kroah-Hartman
parent 2e4fe2bde9
commit ced41eba41
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/lustre/lustre/lmv/lmv_obd.c
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@ -593,11 +593,11 @@ static int lmv_disconnect_mdc(struct obd_device *obd, struct lmv_tgt_desc *tgt)
mdc_obd->obd_force = obd->obd_force;
mdc_obd->obd_fail = obd->obd_fail;
mdc_obd->obd_no_recov = obd->obd_no_recov;
}
if (lmv->lmv_tgts_kobj)
sysfs_remove_link(lmv->lmv_tgts_kobj,
mdc_obd->obd_name);
if (lmv->lmv_tgts_kobj)
sysfs_remove_link(lmv->lmv_tgts_kobj,
mdc_obd->obd_name);
}
rc = obd_fid_fini(tgt->ltd_exp->exp_obd);
if (rc)