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Cc: stable@vger.kernel.org Signed-off-by: Hamza Mahfooz --- drivers/pci/pci-driver.c | 12 ++++++++++++ include/linux/pci.h | 5 +++++ 2 files changed, 17 insertions(+) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 51ec9e7e784f..8aae484c5494 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -466,6 +466,17 @@ static int pci_device_probe(struct device *dev) return error; } +static bool pci_device_can_remove(struct device *dev) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + struct pci_driver *drv = pci_dev->driver; + + if (drv->can_remove) + return drv->can_remove(pci_dev); + + return true; +} + static void pci_device_remove(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); @@ -1680,6 +1691,7 @@ struct bus_type pci_bus_type = { .match = pci_bus_match, .uevent = pci_uevent, .probe = pci_device_probe, + .can_remove = pci_device_can_remove, .remove = pci_device_remove, .shutdown = pci_device_shutdown, .dev_groups = pci_dev_groups, diff --git a/include/linux/pci.h b/include/linux/pci.h index add9368e6314..95276f44b23b 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -902,6 +902,10 @@ struct module; * (negative number) otherwise. * The probe function always gets called from process * context, so it can sleep. + * @can_remove: The can_remove() function gets called during driver + * deregistration to determine if remove() can be called. + * The probe function always gets called from process + * context, so it can sleep. * @remove: The remove() function gets called whenever a device * being handled by this driver is removed (either during * deregistration of the driver or when it's manually @@ -943,6 +947,7 @@ struct pci_driver { const char *name; const struct pci_device_id *id_table; /* Must be non-NULL for probe to be called */ int (*probe)(struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ + bool (*can_remove)(struct pci_dev *dev); void (*remove)(struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ int (*suspend)(struct pci_dev *dev, pm_message_t state); /* Device suspended */ int (*resume)(struct pci_dev *dev); /* Device woken up */