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authorStefani Seibold <stefani@seibold.net>2009-12-21 14:37:27 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-22 14:17:56 -0800
commitc1e13f25674ed564948ecb7dfe5f83e578892896 (patch)
tree24fac07b3e2b66dff01c3127b34077de1de4c101 /drivers/usb/serial/generic.c
parent45465487897a1c6d508b14b904dc5777f7ec7e04 (diff)
kfifo: move out spinlock
Move the pointer to the spinlock out of struct kfifo. Most users in tree do not actually use a spinlock, so the few exceptions now have to call kfifo_{get,put}_locked, which takes an extra argument to a spinlock. Signed-off-by: Stefani Seibold <stefani@seibold.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/usb/serial/generic.c')
-rw-r--r--drivers/usb/serial/generic.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index bbe005cefcf..61eef18218b 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -285,7 +285,7 @@ static int usb_serial_generic_write_start(struct usb_serial_port *port)
return 0;
data = port->write_urb->transfer_buffer;
- count = kfifo_get(port->write_fifo, data, port->bulk_out_size);
+ count = kfifo_get_locked(port->write_fifo, data, port->bulk_out_size, &port->lock);
usb_serial_debug_data(debug, &port->dev, __func__, count, data);
/* set up our urb */
@@ -345,7 +345,7 @@ int usb_serial_generic_write(struct tty_struct *tty,
return usb_serial_multi_urb_write(tty, port,
buf, count);
- count = kfifo_put(port->write_fifo, buf, count);
+ count = kfifo_put_locked(port->write_fifo, buf, count, &port->lock);
result = usb_serial_generic_write_start(port);
if (result >= 0)