diff options
author | Johan Hovold <johan@hovoldconsulting.com> | 2015-12-07 15:05:33 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@google.com> | 2015-12-08 15:31:14 -0500 |
commit | 36173112354a4f5993d464f95b04d41e1eec10a0 (patch) | |
tree | a58c52f6e049791cb7493083ca1ac15e2b26dc22 /drivers/staging/greybus/connection.c | |
parent | 30c2de77aedeb0f576356fe152e1e22c4806d239 (diff) | |
download | linux-stable-36173112354a4f5993d464f95b04d41e1eec10a0.tar.gz linux-stable-36173112354a4f5993d464f95b04d41e1eec10a0.tar.bz2 linux-stable-36173112354a4f5993d464f95b04d41e1eec10a0.zip |
greybus: connection: unbind protocol at exit
Unbind protocol at connection exit rather than when the connection is
destroyed.
Now a protocol is only bound while a connection is enabled.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus/connection.c')
-rw-r--r-- | drivers/staging/greybus/connection.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/staging/greybus/connection.c b/drivers/staging/greybus/connection.c index 38803604e603..980244a873b8 100644 --- a/drivers/staging/greybus/connection.c +++ b/drivers/staging/greybus/connection.c @@ -13,6 +13,7 @@ static int gb_connection_bind_protocol(struct gb_connection *connection); +static void gb_connection_unbind_protocol(struct gb_connection *connection); static int gb_connection_init(struct gb_connection *connection); @@ -405,7 +406,7 @@ static int gb_connection_init(struct gb_connection *connection) ret = gb_connection_hd_cport_enable(connection); if (ret) - return ret; + goto err_unbind_protocol; ret = gb_connection_svc_connection_create(connection); if (ret) @@ -440,15 +441,14 @@ err_svc_destroy: gb_connection_svc_connection_destroy(connection); err_hd_cport_disable: gb_connection_hd_cport_disable(connection); +err_unbind_protocol: + gb_connection_unbind_protocol(connection); return ret; } static void gb_connection_exit(struct gb_connection *connection) { - if (!connection->protocol) - return; - spin_lock_irq(&connection->lock); if (connection->state != GB_CONNECTION_STATE_ENABLED) { spin_unlock_irq(&connection->lock); @@ -463,6 +463,7 @@ static void gb_connection_exit(struct gb_connection *connection) gb_connection_control_disconnected(connection); gb_connection_svc_connection_destroy(connection); gb_connection_hd_cport_disable(connection); + gb_connection_unbind_protocol(connection); } /* @@ -482,10 +483,6 @@ void gb_connection_destroy(struct gb_connection *connection) list_del(&connection->hd_links); spin_unlock_irq(&gb_connections_lock); - if (connection->protocol) - gb_protocol_put(connection->protocol); - connection->protocol = NULL; - id_map = &connection->hd->cport_id_map; ida_simple_remove(id_map, connection->hd_cport_id); connection->hd_cport_id = CPORT_ID_BAD; @@ -532,10 +529,6 @@ static int gb_connection_bind_protocol(struct gb_connection *connection) { struct gb_protocol *protocol; - /* If we already have a protocol bound here, just return */ - if (connection->protocol) - return 0; - protocol = gb_protocol_get(connection->protocol_id, connection->major, connection->minor); @@ -550,3 +543,12 @@ static int gb_connection_bind_protocol(struct gb_connection *connection) return 0; } + +static void gb_connection_unbind_protocol(struct gb_connection *connection) +{ + struct gb_protocol *protocol = connection->protocol; + + gb_protocol_put(protocol); + + connection->protocol = NULL; +} |