diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2013-01-03 15:53:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-15 22:30:15 -0800 |
| commit | 2e124b4a390ca85325fae75764bef92f0547fa25 (patch) | |
| tree | 5519fbcdbe954e79b271ea6d31ac5a4dc754c4f5 /drivers/tty/serial/ioc3_serial.c | |
| parent | d6c53c0e9bd0a83f9f9ddbc9fd80141a54d83896 (diff) | |
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/tty/serial/ioc3_serial.c')
| -rw-r--r-- | drivers/tty/serial/ioc3_serial.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/tty/serial/ioc3_serial.c b/drivers/tty/serial/ioc3_serial.c index edbdc4e45075..6e4c715c5d26 100644 --- a/drivers/tty/serial/ioc3_serial.c +++ b/drivers/tty/serial/ioc3_serial.c @@ -1393,7 +1393,6 @@ static inline int do_read(struct uart_port *the_port, char *buf, int len) */ static int receive_chars(struct uart_port *the_port) { - struct tty_struct *tty; unsigned char ch[MAX_CHARS]; int read_count = 0, read_room, flip = 0; struct uart_state *state = the_port->state; @@ -1403,14 +1402,11 @@ static int receive_chars(struct uart_port *the_port) /* Make sure all the pointers are "good" ones */ if (!state) return 0; - if (!state->port.tty) - return 0; if (!(port->ip_flags & INPUT_ENABLE)) return 0; spin_lock_irqsave(&the_port->lock, pflags); - tty = state->port.tty; read_count = do_read(the_port, ch, MAX_CHARS); if (read_count > 0) { @@ -1422,7 +1418,7 @@ static int receive_chars(struct uart_port *the_port) spin_unlock_irqrestore(&the_port->lock, pflags); if (flip) - tty_flip_buffer_push(tty); + tty_flip_buffer_push(&state->port); return read_count; } |