[PATCH 2/7] USB: serial: handle suspend failure path correctly
From: Ming Lei <hidden>
Date: 2013-03-05 04:01:38
Also in:
linux-input
Subsystem:
the rest, usb serial subsystem, usb subsystem · Maintainers:
Linus Torvalds, Johan Hovold, Greg Kroah-Hartman
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 <redacted> Signed-off-by: Ming Lei <redacted> --- 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..04ad3d5 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c@@ -1144,7 +1144,8 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message) r = serial->type->suspend(serial, message); if (r < 0) { serial->suspending = 0; - goto err_out; + if (PMSG_IS_AUTO(msg)) + goto err_out; } }
--
1.7.9.5
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