From: Oleg Drokin Date: Mon, 14 Sep 2015 22:41:22 +0000 (-0400) Subject: staging/lustre/lmv: fix potential null pointer dereference X-Git-Tag: KARO-TX6UL-2015-11-03~34^2~1996 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ced41eba4111e954af6a67ff45e30072a89d6cc5;p=karo-tx-linux.git 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: James Simmons Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index 0fc0b61d9201..cebbacfc5bee 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -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)