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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/tty/ipwireless/tty.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/tty/ipwireless/tty.c')
-rw-r--r--drivers/tty/ipwireless/tty.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
index c43da7445432..8fd72ff9436e 100644
--- a/drivers/tty/ipwireless/tty.c
+++ b/drivers/tty/ipwireless/tty.c
@@ -160,15 +160,9 @@ static void ipw_close(struct tty_struct *linux_tty, struct file *filp)
void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
unsigned int length)
{
- struct tty_struct *linux_tty;
int work = 0;
mutex_lock(&tty->ipw_tty_mutex);
- linux_tty = tty->port.tty;
- if (linux_tty == NULL) {
- mutex_unlock(&tty->ipw_tty_mutex);
- return;
- }
if (!tty->port.count) {
mutex_unlock(&tty->ipw_tty_mutex);
@@ -187,7 +181,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
* This may sleep if ->low_latency is set
*/
if (work)
- tty_flip_buffer_push(linux_tty);
+ tty_flip_buffer_push(&tty->port);
}
static void ipw_write_packet_sent_callback(void *callback_data,