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[SCSI] mptsas : Sanity check for phyinfo is added 

Check for phyinfo->phy before calling sas_port_delete_phy.

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 2009-09-02 11:43:36 +05:30 committed by James Bottomley
parent 5bab08858c
commit 9e39089b95
1 changed files with 7 additions and 1 deletions
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8
drivers/message/fusion/mptsas.c
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@ -852,7 +852,13 @@ mptsas_setup_wide_ports(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info)
port_details->num_phys--;
port_details->phy_bitmask &= ~ (1 << phy_info->phy_id);
memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo));
sas_port_delete_phy(port_details->port, phy_info->phy);
if (phy_info->phy) {
devtprintk(ioc, dev_printk(KERN_DEBUG,
&phy_info->phy->dev, MYIOC_s_FMT
"delete phy %d, phy-obj (0x%p)\n", ioc->name,
phy_info->phy_id, phy_info->phy));
sas_port_delete_phy(port_details->port, phy_info->phy);
}
phy_info->port_details = NULL;
}