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authorOliver Neukum <oliver@neukum.org>2009-07-21 08:47:34 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-09-23 06:46:29 -0700
commit81e5b23cd206d46d4872d25f3d7ff67a0f355c71 (patch)
tree55f5c327daacc5feb91724c4294a61997817d103 /drivers/usb/serial
parent807fcb5e19877d339a4cc56f2c6ddaf3a147457a (diff)
USB: fix wrong order of events in usb serial suspension
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@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial')
-rw-r--r--drivers/usb/serial/usb-serial.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 54bb37d4191..45975b4984e 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);