From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sakari Ailus Subject: [PATCH v8 13/21] v4l: async: Register sub-devices before calling bound callback Date: Tue, 5 Sep 2017 16:05:45 +0300 Message-ID: <20170905130553.1332-14-sakari.ailus@linux.intel.com> References: <20170905130553.1332-1-sakari.ailus@linux.intel.com> Return-path: In-Reply-To: <20170905130553.1332-1-sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-media-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: niklas.soderlund-1zkq55x86MTxsAP9Fp7wbw@public.gmane.org, robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, hverkuil-qWit8jRvyhVmR6Xm/wNWPw@public.gmane.org, laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, pavel-+ZI9xUNit7I@public.gmane.org, sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org List-Id: devicetree@vger.kernel.org Register the sub-device before calling the notifier's bound callback. Doing this the other way around is problematic as the struct v4l2_device has not assigned for the sub-device yet and may be required by the bound callback. Signed-off-by: Sakari Ailus --- drivers/media/v4l2-core/v4l2-async.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index baee95eacbba..79f216723a3f 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -135,13 +135,13 @@ static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier, { int ret; - ret = v4l2_async_notifier_call_bound(notifier, sd, asd); + ret = v4l2_device_register_subdev(notifier->v4l2_dev, sd); if (ret < 0) return ret; - ret = v4l2_device_register_subdev(notifier->v4l2_dev, sd); + ret = v4l2_async_notifier_call_bound(notifier, sd, asd); if (ret < 0) { - v4l2_async_notifier_call_unbind(notifier, sd, asd); + v4l2_device_unregister_subdev(sd); return ret; } -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html