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authorPete Zaitcev <zaitcev@redhat.com>2006-05-22 21:58:49 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-21 15:04:13 -0700
commitcf2c7481d2ff7f0c266de873b2fe93883e9782f9 (patch)
tree35dba35b3969f431feb0dfe5732c3825aa077a22 /drivers/usb/serial/usb-serial.c
parentad93375a30334cd97a61f7076d242e1cfdb66abc (diff)
downloadlwn-cf2c7481d2ff7f0c266de873b2fe93883e9782f9.tar.gz
lwn-cf2c7481d2ff7f0c266de873b2fe93883e9782f9.zip
[PATCH] USB serial: encapsulate schedule_work, remove double-calling
I'm going to throw schedule_work away, it's retarded. But for starters, let's have it encapsulated. Also, generic and whiteheat were both calling usb_serial_port_softint and scheduled work. Only one was necessary. Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/usb-serial.c')
-rw-r--r--drivers/usb/serial/usb-serial.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 92200f05b531..7a1cc1b04979 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -531,7 +531,17 @@ exit:
return -EINVAL;
}
-void usb_serial_port_softint(void *private)
+/*
+ * We would be calling tty_wakeup here, but unfortunately some line
+ * disciplines have an annoying habit of calling tty->write from
+ * the write wakeup callback (e.g. n_hdlc.c).
+ */
+void usb_serial_port_softint(struct usb_serial_port *port)
+{
+ schedule_work(&port->work);
+}
+
+static void usb_serial_port_work(void *private)
{
struct usb_serial_port *port = private;
struct tty_struct *tty;
@@ -794,7 +804,7 @@ int usb_serial_probe(struct usb_interface *interface,
port->serial = serial;
spin_lock_init(&port->lock);
mutex_init(&port->mutex);
- INIT_WORK(&port->work, usb_serial_port_softint, port);
+ INIT_WORK(&port->work, usb_serial_port_work, port);
serial->port[i] = port;
}