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authorKrishna Gudipati <kgudipat@brocade.com>2011-12-21 06:54:30 +0400
committerJames Bottomley <JBottomley@Parallels.com>2012-01-11 03:01:23 +0400
commit6bc6204e3b7f4ac235e98e362714213369d6a012 (patch)
treee390f206bf9583446e22ab70408f5f70c2e4a08c /drivers/scsi
parentf1633011e4fcb65bf65aebeaf4024efdc4c49d6e (diff)
downloadlinux-6bc6204e3b7f4ac235e98e362714213369d6a012.tar.xz
[SCSI] bfa: Fix possible NULL pointer dereference in lunmask add/delete.
Patch fixes the possible NULL pointer dereference when we try to add or delete a rpwwn to the lunmask config which is not zoned to this port. Check if the FCS rport is not NULL before de-referencing it. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/bfa/bfa_fcpim.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c
index e07bd4745d8b..846f15b6e1d8 100644
--- a/drivers/scsi/bfa/bfa_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcpim.c
@@ -2647,7 +2647,8 @@ bfa_fcpim_lunmask_add(struct bfa_s *bfa, u16 vf_id, wwn_t *pwwn,
if (port) {
*pwwn = port->port_cfg.pwwn;
rp_fcs = bfa_fcs_lport_get_rport_by_pwwn(port, rpwwn);
- rp = rp_fcs->bfa_rport;
+ if (rp_fcs)
+ rp = rp_fcs->bfa_rport;
}
lunm_list = bfa_get_lun_mask_list(bfa);
@@ -2715,7 +2716,8 @@ bfa_fcpim_lunmask_delete(struct bfa_s *bfa, u16 vf_id, wwn_t *pwwn,
if (port) {
*pwwn = port->port_cfg.pwwn;
rp_fcs = bfa_fcs_lport_get_rport_by_pwwn(port, rpwwn);
- rp = rp_fcs->bfa_rport;
+ if (rp_fcs)
+ rp = rp_fcs->bfa_rport;
}
}