From mboxrd@z Thu Jan 1 00:00:00 1970 From: okaya@codeaurora.org (Sinan Kaya) Date: Tue, 2 Jan 2018 12:00:23 -0500 Subject: [PATCH V3 6/6] PCI: Add device wait after slot and bus reset In-Reply-To: <1514912423-13341-1-git-send-email-okaya@codeaurora.org> References: <1514912423-13341-1-git-send-email-okaya@codeaurora.org> Message-ID: <1514912423-13341-7-git-send-email-okaya@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Rev 3.1 Sec 2.3.1 Request Handling Rules indicates that a device can issue CRS following secondary bus reset. Handle device presence gracefully. Signed-off-by: Sinan Kaya Reviewed-by: Christoph Hellwig --- drivers/pci/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index eae04aa..2c9e9a9 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -4161,7 +4161,7 @@ int pci_reset_bridge_secondary_bus(struct pci_dev *dev) { pcibios_reset_secondary_bus(dev); - return 0; + return pci_dev_wait(dev, "bus reset", PCIE_RESET_READY_POLL_MS); } EXPORT_SYMBOL_GPL(pci_reset_bridge_secondary_bus); -- 1.9.1