From: Johan Hovold Date: Tue, 19 Jan 2016 11:51:24 +0000 (+0100) Subject: greybus: connection: drop the connection_mutex X-Git-Tag: v4.14-rc1~2366^2~378^2~21^2~788 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c6d64a19cdb39680460ab9f153e33843aa8c825c;p=platform%2Fkernel%2Flinux-rpi.git greybus: connection: drop the connection_mutex Drop the useless connection_mutex that did not, and can not be used to prevent connection lookup races in atomic context and therefore serves no purpose. Reviewed-by: Viresh Kumar Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/greybus/connection.c b/drivers/staging/greybus/connection.c index 1d7c21e..bfd2c0d 100644 --- a/drivers/staging/greybus/connection.c +++ b/drivers/staging/greybus/connection.c @@ -66,8 +66,6 @@ void greybus_data_rcvd(struct gb_host_device *hd, u16 cport_id, } EXPORT_SYMBOL_GPL(greybus_data_rcvd); -static DEFINE_MUTEX(connection_mutex); - static void gb_connection_kref_release(struct kref *kref) { struct gb_connection *connection; @@ -75,7 +73,6 @@ static void gb_connection_kref_release(struct kref *kref) connection = container_of(kref, struct gb_connection, kref); kfree(connection); - mutex_unlock(&connection_mutex); } static void gb_connection_init_name(struct gb_connection *connection) @@ -519,8 +516,7 @@ void gb_connection_destroy(struct gb_connection *connection) ida_simple_remove(id_map, connection->hd_cport_id); connection->hd_cport_id = CPORT_ID_BAD; - kref_put_mutex(&connection->kref, gb_connection_kref_release, - &connection_mutex); + kref_put(&connection->kref, gb_connection_kref_release); } void gb_connection_latency_tag_enable(struct gb_connection *connection)