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authorJiri Slaby <jslaby@suse.cz>2013-01-03 18:53:06 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-16 10:30:15 +0400
commit2e124b4a390ca85325fae75764bef92f0547fa25 (patch)
tree5519fbcdbe954e79b271ea6d31ac5a4dc754c4f5 /drivers/usb/serial/oti6858.c
parentd6c53c0e9bd0a83f9f9ddbc9fd80141a54d83896 (diff)
downloadlinux-2e124b4a390ca85325fae75764bef92f0547fa25.tar.xz
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/oti6858.c')
-rw-r--r--drivers/usb/serial/oti6858.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index 7a53fe9f3af3..a958fd41b5b3 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -820,7 +820,6 @@ static void oti6858_read_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
struct oti6858_private *priv = usb_get_serial_port_data(port);
- struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
unsigned long flags;
int status = urb->status;
@@ -835,12 +834,10 @@ static void oti6858_read_bulk_callback(struct urb *urb)
return;
}
- tty = tty_port_tty_get(&port->port);
- if (tty != NULL && urb->actual_length > 0) {
+ if (urb->actual_length > 0) {
tty_insert_flip_string(&port->port, data, urb->actual_length);
- tty_flip_buffer_push(tty);
+ tty_flip_buffer_push(&port->port);
}
- tty_kref_put(tty);
/* schedule the interrupt urb */
result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);