From: Oliver Neukum <oliver@xxxxxxxxxx>
if a subdriver has an additional suspend method, it must be called
first to allow the subdriver to return -EBUSY, because the second
half cannot be easily undone.
Signed-off-by: Oliver Neukum <oliver@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/serial/usb-serial.c | 10 +++++++---
1 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 54bb37d..45975b4 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1157,15 +1157,19 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
serial->suspending = 1;
+ if (serial->type->suspend) {
+ r = serial->type->suspend(serial, message);
+ if (r < 0)
+ goto err_out;
+ }
+
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
if (port)
kill_traffic(port);
}
- if (serial->type->suspend)
- r = serial->type->suspend(serial, message);
-
+err_out:
return r;
}
EXPORT_SYMBOL(usb_serial_suspend);
--
1.6.4.2
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