Messages in this thread Patch in this message | | | From | Dmytro Bagrii <> | Subject | [PATCH] usb: core: Call disconnect() only if it is provided by driver | Date | Thu, 19 May 2022 16:29:00 +0300 |
| |
A driver may use devres allocations. Disconnect handler is not needed in this case. Allow such driver to leave .disconnect field uninitialized in struct usb_driver instead of providing empty stub function.
Signed-off-by: Dmytro Bagrii <dimich.dmb@gmail.com> --- drivers/usb/core/driver.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 355ed33a2179..d7fe440b033c 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -455,7 +455,8 @@ static int usb_unbind_interface(struct device *dev) if (!driver->soft_unbind || udev->state == USB_STATE_NOTATTACHED) usb_disable_interface(udev, intf, false); - driver->disconnect(intf); + if (driver->disconnect) + driver->disconnect(intf); /* Free streams */ for (i = 0, j = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { -- 2.36.1
| |