On 9/4/25 09:26, Xu Yang wrote:

quoted

quoted

   	/* allow minidriver to stop correctly (wireless devices to turn off
   	 * radio etc) */
-	if (info->stop) {
+	if (info->stop && !dev->suspend_count) {

... for !dev->suspend_count to be false

The suspend_count won't go to 0 because there is no chance to call
usbnet_resume() if the USB device is physically disconnected from the
USB port during system suspend.

Sorry for the delay.

While you are correct that a physical disconnect
will make the PM call fail, you cannot assume that
a physical disconnect is the only reason disconnect()
would be called.
It would also be called if

- the module is unloaded
- usbfs is used to disconnect the driver from the device

Hence it seems to me that using suspend_count is false.
You need to use the return of the PM operation.

	Regards
		Oliver