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PCI: Add a return type for pci_reset_bridge_secondary_bus()

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Add a return value to pci_reset_bridge_secondary_bus() so we can return an
error if the device doesn't become ready after the reset.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sinan Kaya 2018-02-27 14:14:11 -06:00 committed by Bjorn Helgaas
parent abbcf0e2a9
commit 01fd61c0b9
2 changed files with 4 additions and 2 deletions
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4
drivers/pci/pci.c
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@ -4229,9 +4229,11 @@ void __weak pcibios_reset_secondary_bus(struct pci_dev *dev)
* Use the bridge control register to assert reset on the secondary bus.
* Devices on the secondary bus are left in power-on state.
*/
void pci_reset_bridge_secondary_bus(struct pci_dev *dev)
int pci_reset_bridge_secondary_bus(struct pci_dev *dev)
{
pcibios_reset_secondary_bus(dev);
return 0;
}
EXPORT_SYMBOL_GPL(pci_reset_bridge_secondary_bus);

2
include/linux/pci.h
View File

@ -1095,7 +1095,7 @@ int pci_reset_bus(struct pci_bus *bus);
int pci_try_reset_bus(struct pci_bus *bus);
void pci_reset_secondary_bus(struct pci_dev *dev);
void pcibios_reset_secondary_bus(struct pci_dev *dev);
void pci_reset_bridge_secondary_bus(struct pci_dev *dev);
int pci_reset_bridge_secondary_bus(struct pci_dev *dev);
void pci_update_resource(struct pci_dev *dev, int resno);
int __must_check pci_assign_resource(struct pci_dev *dev, int i);
int __must_check pci_reassign_resource(struct pci_dev *dev, int i, resource_size_t add_size, resource_size_t align);