From: Eric W. Biederman Date: Sat, 21 Feb 2009 04:16:07 +0000 (-0800) Subject: PCI: pcie_portdriver: fix pcie_port_device_remove X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ae40582e9959cdb7bfe4b918be8e3d19f9511798;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git PCI: pcie_portdriver: fix pcie_port_device_remove pcie_port_device_remove currently calls the remove method of port drivers twice. Ouch! We are calling device_for_each_child multiple times for no apparent reason. So make it simple. Place put_device and device_unregister into remove_iter, and throw out the rest. Only call device_for_each_child once. The code is simpler and actually works! Signed-off-by: Eric W. Biederman Signed-off-by: Jesse Barnes --- diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 3aea92a92928..569af0015fce 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -456,16 +456,9 @@ int pcie_port_device_resume(struct pci_dev *dev) static int remove_iter(struct device *dev, void *data) { - struct pcie_port_service_driver *service_driver; - if (dev->bus == &pcie_port_bus_type) { - if (dev->driver) { - service_driver = to_service_driver(dev->driver); - if (service_driver->remove) - service_driver->remove(to_pcie_device(dev)); - } - *(unsigned long*)data = (unsigned long)dev; - return 1; + put_device(dev); + device_unregister(dev); } return 0; } @@ -480,18 +473,8 @@ static int remove_iter(struct device *dev, void *data) void pcie_port_device_remove(struct pci_dev *dev) { struct pcie_port_data *port_data = pci_get_drvdata(dev); - int status; - - do { - unsigned long device_addr; - status = device_for_each_child(&dev->dev, &device_addr, remove_iter); - if (status) { - struct device *device = (struct device*)device_addr; - put_device(device); - device_unregister(device); - } - } while (status); + device_for_each_child(&dev->dev, NULL, remove_iter); switch (port_data->port_irq_mode) { case PCIE_PORT_MSIX_MODE: