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scsi: qla2xxx: don't disable a not previously enabled PCI device 

When pci_enable_device() or pci_enable_device_mem() fail in
qla2x00_probe_one() we bail out but do a call to
pci_disable_device(). This causes the dev_WARN_ON() in
pci_disable_device() to trigger, as the device wasn't enabled
previously.

So instead of taking the 'probe_out' error path we can directly return
*iff* one of the pci_enable_device() calls fails.

Additionally rename the 'probe_out' goto label's name to the more
descriptive 'disable_device'.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Fixes: e315cd28b9 ("[SCSI] qla2xxx: Code changes for qla data structure refactoring")
Cc: <stable@vger.kernel.org>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Giridhar Malavali <giridhar.malavali@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Johannes Thumshirn 2017-05-23 16:50:47 +02:00 committed by Martin K. Petersen
parent 75b61250bf
commit ddff7ed45e
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/scsi/qla2xxx/qla_os.c
View File

@ -2623,10 +2623,10 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
if (mem_only) {
if (pci_enable_device_mem(pdev))
goto probe_out;
return ret;
} else {
if (pci_enable_device(pdev))
goto probe_out;
return ret;
}
/* This may fail but that's ok */
@ -2636,7 +2636,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
if (!ha) {
ql_log_pci(ql_log_fatal, pdev, 0x0009,
"Unable to allocate memory for ha.\n");
goto probe_out;
goto disable_device;
}
ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
"Memory allocated for ha=%p.\n", ha);
@ -3254,7 +3254,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
pci_release_selected_regions(ha->pdev, ha->bars);
kfree(ha);
probe_out:
disable_device:
pci_disable_device(pdev);
return ret;
}