From: Bjørn Mork <bjorn@xxxxxxx> Date: Mon, 10 Sep 2012 22:15:50 +0200 > This fixes a hang on suspend due to calling wdm_suspend on > the unregistered data interface. The hang should have been > a NULL pointer reference had it not been for a logic error > in the cdc_wdm code. > > commit 230718bd net: qmi_wwan: bind to both control and data interface > > changed qmi_wwan to use cdc_wdm as a subdriver for devices with > a two-interface QMI/wwan function. The commit failed to update > qmi_wwan_suspend and qmi_wwan_resume, which were written to handle > either a single combined interface function, or no subdriver at all. > > The result was that we called into the subdriver both when the > control interface was suspended and when the data interface was > suspended. Calling the subdriver suspend function with an > unregistered interface is not supported and will make the > subdriver bug out. > > Signed-off-by: Bjørn Mork <bjorn@xxxxxxx> Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
