Commit ced41eba authored by Oleg Drokin's avatar Oleg Drokin Committed by Greg Kroah-Hartman
Browse files

staging/lustre/lmv: fix potential null pointer dereference 

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: default avatarJames Simmons <uja.ornl@yahoo.com>
Reviewed-by: default avatarJohn L. Hammond <john.hammond@intel.com>
Reviewed-by: default avatarDmitry Eremin <dmitry.eremin@intel.com>
Signed-off-by: default avatarOleg Drokin <oleg.drokin@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2e4fe2bd

drivers/staging/lustre/lustre/lmv/lmv_obd.c

+4 −4
Original line number Diff line number Diff line
@@ -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);

	}



	rc = obd_fid_fini(tgt->ltd_exp->exp_obd);

	if (rc)