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authorJiri Slaby <jslaby@suse.cz>2013-01-03 15:53:01 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-15 22:17:28 -0800
commit227434f8986c3827a1faedd1feb437acd6285315 (patch)
treee96f6c6a800b81d096be73c1b7943c7aa24aa632 /arch/um/drivers
parentea28fd56fcde69af768135e428093f94c5ca6a88 (diff)
downloadop-kernel-dev-227434f8986c3827a1faedd1feb437acd6285315.zip
op-kernel-dev-227434f8986c3827a1faedd1feb437acd6285315.tar.gz
TTY: switch tty_buffer_request_room to tty_port
Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty pointer in many call sites. Only tty_port will be needed and hence no more tty_port_tty_get calls in those paths. Here we start with tty_buffer_request_room. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/um/drivers')
-rw-r--r--arch/um/drivers/chan_kern.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index e9a0abc..4ff2503 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -554,6 +554,7 @@ int parse_chan_pair(char *str, struct line *line, int device,
void chan_interrupt(struct line *line, struct tty_struct *tty, int irq)
{
+ struct tty_port *port = &line->port;
struct chan *chan = line->chan_in;
int err;
char c;
@@ -562,7 +563,7 @@ void chan_interrupt(struct line *line, struct tty_struct *tty, int irq)
goto out;
do {
- if (tty && !tty_buffer_request_room(tty, 1)) {
+ if (!tty_buffer_request_room(port, 1)) {
schedule_delayed_work(&line->task, 1);
goto out;
}
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