usbip: Fix infinite loop in vhci rx
https://lore.kernel.org/linux-usb/20191206032406.GE1208@mail-itl/T/#u In this mail thread, it shows system hang when there is receive error in vhci. There are two different causes in this bug.
[1] Wrong receive logic in vhci when using scatter-gather [2] Wrong error path of vhci_recv_ret_submit()
[1] considers normal reception to be an error condition and closes connection. And when [1] error situation occurs, wrong error path[2] causes the system freeze. So each patch fixes this bugs.
Suwan Kim (2): usbip: Fix receive error in vhci-hcd when using scatter-gather usbip: Fix error path of vhci_recv_ret_submit()
drivers/usb/usbip/usbip_common.c | 3 +++ drivers/usb/usbip/vhci_rx.c | 13 +++++++++---- 2 files changed, 12 insertions(+), 4 deletions(-)