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authorJiri Slaby <jslaby@suse.cz>2013-01-03 15:53:06 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-16 07:30:15 +0100
commit2e124b4a390ca85325fae75764bef92f0547fa25 (patch)
tree5519fbcdbe954e79b271ea6d31ac5a4dc754c4f5 /drivers/usb/serial/aircable.c
parentTTY: move low_latency to tty_port (diff)
downloadlinux-2e124b4a390ca85325fae75764bef92f0547fa25.tar.xz
linux-2e124b4a390ca85325fae75764bef92f0547fa25.zip
TTY: switch tty_flip_buffer_push
Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. Now, the one where most of tty_port_tty_get gets removed: tty_flip_buffer_push. IOW we also closed all the races in drivers not using tty_port_tty_get at all yet. Also we move tty_flip_buffer_push declaration from include/linux/tty.h to include/linux/tty_flip.h to all others while we are changing it anyway. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial/aircable.c')
-rw-r--r--drivers/usb/serial/aircable.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index 3bb1f8f11fc8..6e320cec397d 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -140,16 +140,11 @@ static void aircable_process_read_urb(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
char *data = (char *)urb->transfer_buffer;
- struct tty_struct *tty;
int has_headers;
int count;
int len;
int i;
- tty = tty_port_tty_get(&port->port);
- if (!tty)
- return;
-
has_headers = (urb->actual_length > 2 && data[0] == RX_HEADER_0);
count = 0;
@@ -160,8 +155,7 @@ static void aircable_process_read_urb(struct urb *urb)
}
if (count)
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
+ tty_flip_buffer_push(&port->port);
}
static struct usb_serial_driver aircable_device = {