From: Sakari Ailus Date: Mon, 29 May 2017 14:45:43 +0000 (-0300) Subject: [media] v4l2-ctrls: Correctly destroy mutex in v4l2_ctrl_handler_free() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=48e3e36a253c66d47843ebe78422cec30095e3d5;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git [media] v4l2-ctrls: Correctly destroy mutex in v4l2_ctrl_handler_free() The mutex that was initialised in v4l2_ctrl_handler_init_class() was not destroyed in v4l2_ctrl_handler_free(). Do that. Additionally, explicitly refer to the ctrl handler's mutex in mutex initialisation for clarity. Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index dec55d53d24a..5aed7bd20ad2 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -1739,8 +1739,8 @@ int v4l2_ctrl_handler_init_class(struct v4l2_ctrl_handler *hdl, unsigned nr_of_controls_hint, struct lock_class_key *key, const char *name) { + mutex_init(&hdl->_lock); hdl->lock = &hdl->_lock; - mutex_init(hdl->lock); lockdep_set_class_and_name(hdl->lock, key, name); INIT_LIST_HEAD(&hdl->ctrls); INIT_LIST_HEAD(&hdl->ctrl_refs); @@ -1780,6 +1780,7 @@ void v4l2_ctrl_handler_free(struct v4l2_ctrl_handler *hdl) hdl->cached = NULL; hdl->error = 0; mutex_unlock(hdl->lock); + mutex_destroy(&hdl->_lock); } EXPORT_SYMBOL(v4l2_ctrl_handler_free);