ASoC: fsl: Fix refcount leak in imx_sgtl5000_probe

of_find_i2c_device_by_node() takes a reference,
In error paths, we should call put_device() to drop
the reference to aviod refount leak.

Fixes: 81e8e4926167 ("ASoC: fsl: add sgtl5000 clock support for imx-sgtl5000")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20220511065803.3957-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
index 8daced4..580a0d9 100644 (file)
--- a/sound/soc/fsl/imx-sgtl5000.c
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -120,19 +120,19 @@ static int imx_sgtl5000_probe(struct platform_device *pdev)
        data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
        if (!data) {
                ret = -ENOMEM;
-               goto fail;
+               goto put_device;
        }
 
        comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL);
        if (!comp) {
                ret = -ENOMEM;
-               goto fail;
+               goto put_device;
        }
 
        data->codec_clk = clk_get(&codec_dev->dev, NULL);
        if (IS_ERR(data->codec_clk)) {
                ret = PTR_ERR(data->codec_clk);
-               goto fail;
+               goto put_device;
        }
 
        data->clk_frequency = clk_get_rate(data->codec_clk);
@@ -158,10 +158,10 @@ static int imx_sgtl5000_probe(struct platform_device *pdev)
        data->card.dev = &pdev->dev;
        ret = snd_soc_of_parse_card_name(&data->card, "model");
        if (ret)
-               goto fail;
+               goto put_device;
        ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
        if (ret)
-               goto fail;
+               goto put_device;
        data->card.num_links = 1;
        data->card.owner = THIS_MODULE;
        data->card.dai_link = &data->dai;
@@ -174,7 +174,7 @@ static int imx_sgtl5000_probe(struct platform_device *pdev)
        ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
        if (ret) {
                dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");
-               goto fail;
+               goto put_device;
        }
 
        of_node_put(ssi_np);
@@ -182,6 +182,8 @@ static int imx_sgtl5000_probe(struct platform_device *pdev)
 
        return 0;
 
+put_device:
+       put_device(&codec_dev->dev);
 fail:
        if (data && !IS_ERR(data->codec_clk))
                clk_put(data->codec_clk);