linux-kernel - [PATCH] media: mtk-vcodec: Fix an error handling path in 'asid_allocator

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Date:   Thu, 11 Nov 2021 14:17:51 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     tiffany.lin@...iatek.com, andrew-ct.chen@...iatek.com,
        mchehab@...nel.org, matthias.bgg@...il.com, acourbot@...omium.org,
        yunfei.dong@...iatek.com, hverkuil-cisco@...all.nl,
        tzungbi@...gle.com
Cc:     linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] media: mtk-vcodec: Fix an error handling path in 'asid_allocator_init()'

In case of error the 'media_device_init()' call is not balanced by a
corresponding 'media_device_cleanup()' call.

Add it, when needed, as already done in the remove function.

Fixes: 118add98f80e ("media: mtk-vcodec: vdec: add media device if using stateless api")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index e6e6a8203eeb..8277c44209b5 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -358,6 +358,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	if (dev->vdec_pdata->uses_stateless_api)
 		v4l2_m2m_unregister_media_controller(dev->m2m_dev_dec);
 err_reg_cont:
+	if (dev->vdec_pdata->uses_stateless_api)
+		media_device_cleanup(&dev->mdev_dec);
 	destroy_workqueue(dev->decode_workqueue);
 err_event_workq:
 	v4l2_m2m_release(dev->m2m_dev_dec);
-- 
2.30.2