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s390/pci: cleanup hotplug code

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Provide wrappers for the [de]configure operations, add some error
handling, and use pci_scan_slot instead of pci_scan_single_device.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott
2013-06-05 16:06:42 +02:00
committed by Martin Schwidefsky
parent 944239c59e
commit 4bee2a5dce
3 changed files with 40 additions and 33 deletions
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19
arch/s390/pci/pci.c
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@@ -974,25 +974,6 @@ void zpci_stop_device(struct zpci_dev *zdev)
}
EXPORT_SYMBOL_GPL(zpci_stop_device);
int zpci_scan_device(struct zpci_dev *zdev)
{
zdev->pdev = pci_scan_single_device(zdev->bus, ZPCI_DEVFN);
if (!zdev->pdev) {
pr_err("pci_scan_single_device failed for fid: 0x%x\n",
zdev->fid);
goto out;
}
pci_bus_add_devices(zdev->bus);
return 0;
out:
zpci_dma_exit_device(zdev);
clp_disable_fh(zdev);
return -EIO;
}
EXPORT_SYMBOL_GPL(zpci_scan_device);
static inline int barsize(u8 size)
{
return (size) ? (1 << size) >> 10 : 0;