diff options
| author | Markus Elfring <elfring@users.sourceforge.net> | 2014-11-21 13:42:29 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-26 19:35:49 -0800 |
| commit | a211b1af1933a3b6019d985762f5237d1d4c4213 (patch) | |
| tree | 7783a3eaf3c3550754f95e5b9019995cb77838ca /drivers/tty | |
| parent | 8bfbe2de769afda051c56aba5450391670e769fc (diff) | |
| download | linux-a211b1af1933a3b6019d985762f5237d1d4c4213.tar.gz linux-a211b1af1933a3b6019d985762f5237d1d4c4213.tar.bz2 linux-a211b1af1933a3b6019d985762f5237d1d4c4213.zip | |
tty: Deletion of unnecessary checks before two function calls
The functions put_device() and tty_kref_put() test whether their argument
is NULL and then return immediately.
Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/tty_io.c | 6 | ||||
| -rw-r--r-- | drivers/tty/tty_port.c | 3 |
2 files changed, 3 insertions, 6 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 705885891b87..4f35b43e2475 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -167,8 +167,7 @@ void free_tty_struct(struct tty_struct *tty) { if (!tty) return; - if (tty->dev) - put_device(tty->dev); + put_device(tty->dev); kfree(tty->write_buf); tty->magic = 0xDEADDEAD; kfree(tty); @@ -1688,8 +1687,7 @@ static void release_tty(struct tty_struct *tty, int idx) tty->link->port->itty = NULL; cancel_work_sync(&tty->port->buf.work); - if (tty->link) - tty_kref_put(tty->link); + tty_kref_put(tty->link); tty_kref_put(tty); } diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 4d9abaa81be4..40b31835f80b 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -193,8 +193,7 @@ void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty) unsigned long flags; spin_lock_irqsave(&port->lock, flags); - if (port->tty) - tty_kref_put(port->tty); + tty_kref_put(port->tty); port->tty = tty_kref_get(tty); spin_unlock_irqrestore(&port->lock, flags); } |