[V3,5/6] PCI: Add a return type for pci_reset_bridge_secondary_bus()

Commit Message

Sinan Kaya Jan. 2, 2018, 5 p.m. UTC

Getting ready to return an error from pci_reset_bridge_secondary_bus() when
device is unreachable.

Signed-off-by: Sinan Kaya <[e-mail]>
Reviewed-by: Christoph Hellwig <[e-mail]>
---
 drivers/pci/pci.c   | 4 +++-
 include/linux/pci.h | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

Patch

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 09eae93..eae04aa 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4157,9 +4157,11 @@  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);
 
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 0c1335a..dbd2ad2 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1094,7 +1094,7 @@  int pcie_get_minimum_link(struct pci_dev *dev, enum pci_bus_speed *speed,
 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);