diff options
| -rw-r--r-- | drivers/net/usb/usbnet.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 0ac1ff3571cb..5bf77171f452 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1670,8 +1670,14 @@ out: int usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, void *data, u16 size) { - return __usbnet_read_cmd(dev, cmd, reqtype, value, index, - data, size); + int ret; + + if (usb_autopm_get_interface(dev->intf) < 0) + return -ENODEV; + ret = __usbnet_read_cmd(dev, cmd, reqtype, value, index, + data, size); + usb_autopm_put_interface(dev->intf); + return ret; } EXPORT_SYMBOL_GPL(usbnet_read_cmd); @@ -1682,8 +1688,14 @@ EXPORT_SYMBOL_GPL(usbnet_read_cmd); int usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value, u16 index, const void *data, u16 size) { - return __usbnet_write_cmd(dev, cmd, reqtype, value, index, - data, size); + int ret; + + if (usb_autopm_get_interface(dev->intf) < 0) + return -ENODEV; + ret = __usbnet_write_cmd(dev, cmd, reqtype, value, index, + data, size); + usb_autopm_put_interface(dev->intf); + return ret; } EXPORT_SYMBOL_GPL(usbnet_write_cmd); |