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authorAnton Vorontsov <anton.vorontsov@linaro.org>2012-12-12 07:15:57 +0100
committerAnton Vorontsov <anton.vorontsov@linaro.org>2012-12-12 07:15:57 +0100
commit76d8a23b127020472207b281427d3e9f4f1227e4 (patch)
treee14d7063d96d850fb259115d6fb08cbeb98ccf88 /drivers/tty/tty_port.c
parentmax8925_power: Add support for device-tree initialization (diff)
parentMerge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/ker... (diff)
downloadlinux-76d8a23b127020472207b281427d3e9f4f1227e4.tar.xz
linux-76d8a23b127020472207b281427d3e9f4f1227e4.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
The merge is merely to fix conflicts before sending a pull request. Conflicts: drivers/power/ab8500_btemp.c drivers/power/ab8500_charger.c drivers/power/ab8500_fg.c drivers/power/abx500_chargalg.c drivers/power/max8925_power.c Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Diffstat (limited to 'drivers/tty/tty_port.c')
-rw-r--r--drivers/tty/tty_port.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index d7bdd8d0c23f..b7ff59d3db88 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -21,6 +21,7 @@
void tty_port_init(struct tty_port *port)
{
memset(port, 0, sizeof(*port));
+ tty_buffer_init(port);
init_waitqueue_head(&port->open_wait);
init_waitqueue_head(&port->close_wait);
init_waitqueue_head(&port->delta_msr_wait);
@@ -121,12 +122,27 @@ void tty_port_free_xmit_buf(struct tty_port *port)
}
EXPORT_SYMBOL(tty_port_free_xmit_buf);
+/**
+ * tty_port_destroy -- destroy inited port
+ * @port: tty port to be doestroyed
+ *
+ * When a port was initialized using tty_port_init, one has to destroy the
+ * port by this function. Either indirectly by using tty_port refcounting
+ * (tty_port_put) or directly if refcounting is not used.
+ */
+void tty_port_destroy(struct tty_port *port)
+{
+ tty_buffer_free_all(port);
+}
+EXPORT_SYMBOL(tty_port_destroy);
+
static void tty_port_destructor(struct kref *kref)
{
struct tty_port *port = container_of(kref, struct tty_port, kref);
if (port->xmit_buf)
free_page((unsigned long)port->xmit_buf);
- if (port->ops->destruct)
+ tty_port_destroy(port);
+ if (port->ops && port->ops->destruct)
port->ops->destruct(port);
else
kfree(port);