diff options
| -rw-r--r-- | drivers/net/usb/qmi_wwan.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 968d5d50751..bdceb7411de 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -271,6 +271,11 @@ static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message) struct qmi_wwan_state *info = (void *)&dev->data; int ret; + /* + * Both usbnet_suspend() and subdriver->suspend() MUST return 0 + * in system sleep context, otherwise, the resume callback has + * to recover device from previous suspend failure. + */ ret = usbnet_suspend(intf, message); if (ret < 0) goto err; |