071dc1787a
The 'EPERM' cannot appear in the previous path, we should use '-EPERM' to check it. For example: Call trace: ->rtl8192_rx_isr ->usb_submit_urb ->usb_hcd_submit_urb ->rh_urb_enqueue ->rh_queue_status ->usb_hcd_link_urb_to_ep Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20201028122648.47959-1-zhangqilong3@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>