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authorJiri Slaby <jslaby@suse.cz>2013-03-07 16:12:29 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-19 03:19:45 +0400
commit6aad04f21374633bd8cecf25024553d1e11a9522 (patch)
tree9e3351e53b68d158b436a737049cbe2ee01ff126 /drivers/s390
parent6982a398426a22166eaf049b79544536fdd6429f (diff)
downloadlinux-6aad04f21374633bd8cecf25024553d1e11a9522.tar.xz
TTY: add tty_port_tty_wakeup helper
It allows for cleaning up on a considerable amount of places. They did port_get, wakeup, kref_put. Now the only thing needed is to call tty_port_tty_wakeup which does exactly that. One exception is ifx6x60 where tty_wakeup was open-coded. We now call tty_wakeup properly there. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/sclp_tty.c9
-rw-r--r--drivers/s390/char/sclp_vt220.c8
2 files changed, 3 insertions, 14 deletions
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index 14b4cb8abcc8..7ed7a5987816 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -107,7 +107,6 @@ sclp_tty_write_room (struct tty_struct *tty)
static void
sclp_ttybuf_callback(struct sclp_buffer *buffer, int rc)
{
- struct tty_struct *tty;
unsigned long flags;
void *page;
@@ -125,12 +124,8 @@ sclp_ttybuf_callback(struct sclp_buffer *buffer, int rc)
struct sclp_buffer, list);
spin_unlock_irqrestore(&sclp_tty_lock, flags);
} while (buffer && sclp_emit_buffer(buffer, sclp_ttybuf_callback));
- /* check if the tty needs a wake up call */
- tty = tty_port_tty_get(&sclp_port);
- if (tty != NULL) {
- tty_wakeup(tty);
- tty_kref_put(tty);
- }
+
+ tty_port_tty_wakeup(&sclp_port);
}
static inline void
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 6c92f62623be..5aaaa2ec8df4 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -114,7 +114,6 @@ static struct sclp_register sclp_vt220_register = {
static void
sclp_vt220_process_queue(struct sclp_vt220_request *request)
{
- struct tty_struct *tty;
unsigned long flags;
void *page;
@@ -139,12 +138,7 @@ sclp_vt220_process_queue(struct sclp_vt220_request *request)
} while (__sclp_vt220_emit(request));
if (request == NULL && sclp_vt220_flush_later)
sclp_vt220_emit_current();
- /* Check if the tty needs a wake up call */
- tty = tty_port_tty_get(&sclp_vt220_port);
- if (tty) {
- tty_wakeup(tty);
- tty_kref_put(tty);
- }
+ tty_port_tty_wakeup(&sclp_vt220_port);
}
#define SCLP_BUFFER_MAX_RETRY 1