diff options
| author | Zhang, Yanmin <yanmin_zhang@linux.intel.com> | 2009-04-30 14:48:29 +0800 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-05-05 12:20:57 -0700 |
| commit | 029091df01116aff8dea89ce96a0a2534401803a (patch) | |
| tree | 271c4560592f5b58ba55cb34d28780300ec13a65 | |
| parent | f328ddc154605be11c4ca38fee6ace8adb140087 (diff) | |
| download | op-kernel-dev-029091df01116aff8dea89ce96a0a2534401803a.zip op-kernel-dev-029091df01116aff8dea89ce96a0a2534401803a.tar.gz | |
PCI: Fix pci-e port driver slot_reset bad default return value
When an upstream port reports an AER error to root port, kernel
starts error recovery procedures. The default return value of
function pcie_portdrv_slot_reset is PCI_ERS_RESULT_NONE. If all
port service drivers of the downstream port under the upstream
port have no slot_reset method in pci_error_handlers, AER recovery
would stop without resume. Below patch against 2.6.30-rc3 fixes it.
Signed-off-by: Zhang Yanmin <yanmin.zhang@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv.h | 3 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_pci.c | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h index c7ad68b..aa14482 100644 --- a/drivers/pci/pcie/aer/aerdrv.h +++ b/drivers/pci/pcie/aer/aerdrv.h @@ -95,6 +95,9 @@ struct aer_broadcast_data { static inline pci_ers_result_t merge_result(enum pci_ers_result orig, enum pci_ers_result new) { + if (new == PCI_ERS_RESULT_NONE) + return orig; + switch (orig) { case PCI_ERS_RESULT_CAN_RECOVER: case PCI_ERS_RESULT_RECOVERED: diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index b924e24..091ce70 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -200,7 +200,7 @@ static int slot_reset_iter(struct device *device, void *data) static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev) { - pci_ers_result_t status = PCI_ERS_RESULT_NONE; + pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED; int retval; /* If fatal, restore cfg space for possible link reset at upstream */ |
