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PCI/AER: Return error if AER is not supported

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get_device_error_info() reads error information from registers in the AER
capability.  If we call it for a device that has no AER capability, it
should return an error, but previously it returned success.

Return 0 (error) if the device doesn't have an AER capability.

Signed-off-by: Keith Busch <keith.busch@intel.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
This commit is contained in:
Keith Busch 2017-12-19 14:06:40 -07:00 committed by Bjorn Helgaas
parent b9f80fdc42
commit 0f6f1d9fca
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/pcie/aer/aerdrv_core.c
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@ -661,7 +661,7 @@ static int get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
/* The device might not support AER */
if (!pos)
return 1;
return 0;
if (info->severity == AER_CORRECTABLE) {
pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS,