[PATCH] 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 --- sound/soc/fsl/imx-sgtl5000.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c index 8daced42d55e..580a0d963f0e 100644 --- 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);
On Wed, May 11, 2022 at 3:58 AM Miaoqian Lin linmq006@gmail.com wrote:
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.
s/aviod refount/avoid refcount
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
On Wed, 11 May 2022 10:58:03 +0400, Miaoqian Lin wrote:
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.
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/1] ASoC: fsl: Fix refcount leak in imx_sgtl5000_probe commit: 41cd312dfe980af869c3503b4d38e62ed20dd3b7
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
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Thanks, Mark
participants (3)
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Fabio Estevam
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Mark Brown
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Miaoqian Lin