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[SCSI] mptfusion: sanity check for vdevice pointer is added

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Added sanity checks before accessing vdevice and added vdevice->deleted
setting for mptfc.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Kashyap, Desai
2010-03-18 19:22:45 +05:30
committed by James Bottomley
parent f8c23bde85
commit 08f5c5c23d
3 changed files with 26 additions and 0 deletions
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17
drivers/message/fusion/mptfc.c
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@@ -482,6 +482,7 @@ mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
if (vtarget) {
vtarget->id = pg0->CurrentTargetID;
vtarget->channel = pg0->CurrentBus;
vtarget->deleted = 0;
}
}
*((struct mptfc_rport_info **)rport->dd_data) = ri;
@@ -1092,6 +1093,8 @@ mptfc_setup_reset(struct work_struct *work)
container_of(work, MPT_ADAPTER, fc_setup_reset_work);
u64 pn;
struct mptfc_rport_info *ri;
struct scsi_target *starget;
VirtTarget *vtarget;
/* reset about to happen, delete (block) all rports */
list_for_each_entry(ri, &ioc->fc_rports, list) {
@@ -1099,6 +1102,12 @@ mptfc_setup_reset(struct work_struct *work)
ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED;
fc_remote_port_delete(ri->rport); /* won't sleep */
ri->rport = NULL;
starget = ri->starget;
if (starget) {
vtarget = starget->hostdata;
if (vtarget)
vtarget->deleted = 1;
}
pn = (u64)ri->pg0.WWPN.High << 32 |
(u64)ri->pg0.WWPN.Low;
@@ -1119,6 +1128,8 @@ mptfc_rescan_devices(struct work_struct *work)
int ii;
u64 pn;
struct mptfc_rport_info *ri;
struct scsi_target *starget;
VirtTarget *vtarget;
/* start by tagging all ports as missing */
list_for_each_entry(ri, &ioc->fc_rports, list) {
@@ -1146,6 +1157,12 @@ mptfc_rescan_devices(struct work_struct *work)
MPT_RPORT_INFO_FLAGS_MISSING);
fc_remote_port_delete(ri->rport); /* won't sleep */
ri->rport = NULL;
starget = ri->starget;
if (starget) {
vtarget = starget->hostdata;
if (vtarget)
vtarget->deleted = 1;
}
pn = (u64)ri->pg0.WWPN.High << 32 |
(u64)ri->pg0.WWPN.Low;