This patch kills traffic even though type->suspend returns
failure inside usb_serial_suspend from system sleep context
because USB core ignores the failiure and lets system sleep
go ahread, so the serial URB traffic need to be killed
in this case.
Cc: Johan Hovold <jhovold@xxxxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
---
drivers/usb/serial/usb-serial.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index a19ed74..9d0b9c8 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1142,10 +1142,11 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
if (serial->type->suspend) {
r = serial->type->suspend(serial, message);
- if (r < 0) {
+ if (r < 0 && PMSG_IS_AUTO(message)) {
serial->suspending = 0;
goto err_out;
}
+ /* TODO: resume() might need to handle suspend failure */
}
for (i = 0; i < serial->num_ports; ++i) {
--
1.7.9.5
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