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authorJiri Slaby <jslaby@suse.cz>2012-11-15 09:49:54 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-11-15 17:20:58 -0800
commitde274bfe0fc81def6ddb8a17020a9a4b56477cc4 (patch)
treefb2aeacdb9fc1e94b5aa13beb6a4818c043b43d3 /include/linux/tty.h
parent9a8e62bc68832dc55a5e6868f812b65567fe66b5 (diff)
TTY: introduce tty_port_destroy
After commit "TTY: move tty buffers to tty_port", the tty buffers are not freed in some drivers. This is because tty_port_destructor is not called whenever a tty_port is freed. This was an assumption I counted with but was unfortunately untrue. Those using refcounting are safe now, but for those which do not we introduce a function to be called right before the tty_port is freed by the drivers. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/tty.h')
-rw-r--r--include/linux/tty.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index d7ff88fb8967..8db1b569c37a 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -455,6 +455,7 @@ extern struct device *tty_port_register_device_attr(struct tty_port *port,
const struct attribute_group **attr_grp);
extern int tty_port_alloc_xmit_buf(struct tty_port *port);
extern void tty_port_free_xmit_buf(struct tty_port *port);
+extern void tty_port_destroy(struct tty_port *port);
extern void tty_port_put(struct tty_port *port);
static inline struct tty_port *tty_port_get(struct tty_port *port)