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mpt3sas, mpt2sas: fix scsi_add_host error handling problems in _scsih_probe 

In _scsih_probe, propagate the return value from scsi_add_host.
In mpt3sas, avoid calling list_del twice if that returns an
error, which causes list_del corruption warnings if an error
is returned.

Tested with blk-mq and scsi-mq patches to properly cleanup
from and propagate blk_mq_init_rq_map errors.

Signed-off-by: Robert Elliott <elliott@hp.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sreekanth Reddy 2014-09-12 15:35:33 +05:30 committed by Christoph Hellwig
parent 70d8c86ebe
commit b65f1d4da7
2 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/scsi/mpt2sas/mpt2sas_scsih.c
View File

@ -8147,6 +8147,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct MPT2SAS_ADAPTER *ioc;
struct Scsi_Host *shost;
int rv;
shost = scsi_host_alloc(&scsih_driver_template,
sizeof(struct MPT2SAS_ADAPTER));
@ -8242,6 +8243,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (!ioc->firmware_event_thread) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rv = -ENODEV;
goto out_thread_fail;
}
@ -8249,6 +8251,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if ((mpt2sas_base_attach(ioc))) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rv = -ENODEV;
goto out_attach_fail;
}
@ -8266,7 +8269,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
} else
ioc->hide_drives = 0;
if ((scsi_add_host(shost, &pdev->dev))) {
rv = scsi_add_host(shost, &pdev->dev);
if (rv) {
printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
goto out_add_shost_fail;
@ -8283,7 +8287,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
out_thread_fail:
list_del(&ioc->list);
scsi_host_put(shost);
return -ENODEV;
return rv;
}
#ifdef CONFIG_PM

9
drivers/scsi/mpt3sas/mpt3sas_scsih.c
View File

@ -7781,6 +7781,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct MPT3SAS_ADAPTER *ioc;
struct Scsi_Host *shost;
int rv;
shost = scsi_host_alloc(&scsih_driver_template,
sizeof(struct MPT3SAS_ADAPTER));
@ -7873,6 +7874,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (!ioc->firmware_event_thread) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rv = -ENODEV;
goto out_thread_fail;
}
@ -7880,12 +7882,13 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if ((mpt3sas_base_attach(ioc))) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
rv = -ENODEV;
goto out_attach_fail;
}
if ((scsi_add_host(shost, &pdev->dev))) {
rv = scsi_add_host(shost, &pdev->dev);
if (rv) {
pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
ioc->name, __FILE__, __LINE__, __func__);
list_del(&ioc->list);
goto out_add_shost_fail;
}
@ -7898,7 +7901,7 @@ out_add_shost_fail:
out_thread_fail:
list_del(&ioc->list);
scsi_host_put(shost);
return -ENODEV;
return rv;
}
#ifdef CONFIG_PM