linux-kernel - [PATCH 5.1 002/155] media: rockchip/vpu: Fix/re-order probe-error/remove path

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Date:   Thu, 13 Jun 2019 10:31:54 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jonas Karlman <jonas@...boo.se>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.1 002/155] media: rockchip/vpu: Fix/re-order probe-error/remove path

[ Upstream commit fc8670d1f72b746ff3a5fe441f1fca4c4dba0e6f ]

media_device_cleanup() and v4l2_m2m_unregister_media_controller() were
missing in the probe error path.
While at it, re-order calls in the remove path to unregister/cleanup
things in the reverse order they were initialized/registered.

Signed-off-by: Jonas Karlman <jonas@...boo.se>
Signed-off-by: Boris Brezillon <boris.brezillon@...labora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c b/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c
index 962412c79b91..33b556b3f0df 100644
--- a/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c
+++ b/drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c
@@ -481,10 +481,12 @@ static int rockchip_vpu_probe(struct platform_device *pdev)
 	return 0;
 err_video_dev_unreg:
 	if (vpu->vfd_enc) {
+		v4l2_m2m_unregister_media_controller(vpu->m2m_dev);
 		video_unregister_device(vpu->vfd_enc);
 		video_device_release(vpu->vfd_enc);
 	}
 err_m2m_rel:
+	media_device_cleanup(&vpu->mdev);
 	v4l2_m2m_release(vpu->m2m_dev);
 err_v4l2_unreg:
 	v4l2_device_unregister(&vpu->v4l2_dev);
@@ -501,13 +503,13 @@ static int rockchip_vpu_remove(struct platform_device *pdev)
 	v4l2_info(&vpu->v4l2_dev, "Removing %s\n", pdev->name);
 
 	media_device_unregister(&vpu->mdev);
-	v4l2_m2m_unregister_media_controller(vpu->m2m_dev);
-	v4l2_m2m_release(vpu->m2m_dev);
-	media_device_cleanup(&vpu->mdev);
 	if (vpu->vfd_enc) {
+		v4l2_m2m_unregister_media_controller(vpu->m2m_dev);
 		video_unregister_device(vpu->vfd_enc);
 		video_device_release(vpu->vfd_enc);
 	}
+	media_device_cleanup(&vpu->mdev);
+	v4l2_m2m_release(vpu->m2m_dev);
 	v4l2_device_unregister(&vpu->v4l2_dev);
 	clk_bulk_unprepare(vpu->variant->num_clocks, vpu->clocks);
 	pm_runtime_disable(vpu->dev);
-- 
2.20.1