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media: platform: mtk-mdp3: fix error handling in mdp_probe()

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Adjust label "err_return" order to avoid double freeing, and
add two labels for easy traceability.

Fixes: 61890ccaef ("media: platform: mtk-mdp3: add MediaTek MDP3 driver")
Signed-off-by: Moudy Ho <moudy.ho@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Moudy Ho 2022-10-20 15:18:00 +08:00 committed by Hans Verkuil
parent 74a596e7fc
commit 82b7d4b5d3
1 changed files with 8 additions and 7 deletions
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15
drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
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@ -196,27 +196,27 @@ static int mdp_probe(struct platform_device *pdev)
mm_pdev = __get_pdev_by_id(pdev, MDP_INFRA_MMSYS);
if (!mm_pdev) {
ret = -ENODEV;
goto err_return;
goto err_destroy_device;
}
mdp->mdp_mmsys = &mm_pdev->dev;
mm_pdev = __get_pdev_by_id(pdev, MDP_INFRA_MUTEX);
if (WARN_ON(!mm_pdev)) {
ret = -ENODEV;
goto err_return;
goto err_destroy_device;
}
for (i = 0; i < MDP_PIPE_MAX; i++) {
mdp->mdp_mutex[i] = mtk_mutex_get(&mm_pdev->dev);
if (!mdp->mdp_mutex[i]) {
ret = -ENODEV;
goto err_return;
goto err_free_mutex;
}
}
ret = mdp_comp_config(mdp);
if (ret) {
dev_err(dev, "Failed to config mdp components\n");
goto err_return;
goto err_free_mutex;
}
mdp->job_wq = alloc_workqueue(MDP_MODULE_NAME, WQ_FREEZABLE, 0);
@ -287,11 +287,12 @@ static int mdp_probe(struct platform_device *pdev)
destroy_workqueue(mdp->job_wq);
err_deinit_comp:
mdp_comp_destroy(mdp);
err_return:
err_free_mutex:
for (i = 0; i < MDP_PIPE_MAX; i++)
if (mdp)
mtk_mutex_put(mdp->mdp_mutex[i]);
mtk_mutex_put(mdp->mdp_mutex[i]);
err_destroy_device:
kfree(mdp);
err_return:
dev_dbg(dev, "Errno %d\n", ret);
return ret;
}