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[SCSI] Bug 4940 Repeatable Kernel Panic on Adaptec 2015S I20 device on bootup 

From: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>

Prevent driver from loading if another driver (i2o) has already claimed
the resources associated with the card. Discussion associated with this
bug can be referenced at http://bugzilla.kernel.org/show_bug.cgi?id=4940
where it was agreed to use pci_request_regions in both the dpt_i2o and
the i2o driver to prevent both drivers loading on the same adapter(s).

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>

Rejections fixed up and

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley 2005-08-08 11:51:38 -05:00
parent 6fc32179de
commit 9c472dd919
1 changed files with 8 additions and 1 deletions
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9
drivers/scsi/dpt_i2o.c
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@ -907,9 +907,13 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
raptorFlag = TRUE;
}
if (pci_request_regions(pDev)) {
PERROR("dpti: adpt_config_hba: pci request region failed\n");
return -EINVAL;
}
base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size);
if (!base_addr_virt) {
pci_release_regions(pDev);
PERROR("dpti: adpt_config_hba: io remap failed\n");
return -EINVAL;
}
@ -919,6 +923,7 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
if (!msg_addr_virt) {
PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n");
iounmap(base_addr_virt);
pci_release_regions(pDev);
return -EINVAL;
}
} else {
@ -932,6 +937,7 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
iounmap(msg_addr_virt);
}
iounmap(base_addr_virt);
pci_release_regions(pDev);
return -ENOMEM;
}
memset(pHba, 0, sizeof(adpt_hba));
@ -1027,6 +1033,7 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba)
up(&adpt_configuration_lock);
iounmap(pHba->base_addr_virt);
pci_release_regions(pHba->pDev);
if(pHba->msg_addr_virt != pHba->base_addr_virt){
iounmap(pHba->msg_addr_virt);
}