diff options
| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2018-06-10 01:20:54 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-06-18 14:54:38 +0300 |
| commit | a56df73ba5960848f60f609c68770d2638bf1dd5 (patch) | |
| tree | 00fa4a036e5ecb0e583679e33f81dc061e506d73 /sound/soc/rockchip/rockchip_rt5645.c | |
| parent | 187e01d0d56d1fd682dfaafb0b45d332abec6387 (diff) | |
| download | linux-a56df73ba5960848f60f609c68770d2638bf1dd5.tar.xz | |
ASoC: rockchip: put device_node on remove
snd_rk_mc_probe() gets a couple of device nodes with of_parse_phandle(),
but there is no release of them.
The patch adds remove handler and proper error handling in the probe.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/rockchip/rockchip_rt5645.c')
| -rw-r--r-- | sound/soc/rockchip/rockchip_rt5645.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/sound/soc/rockchip/rockchip_rt5645.c b/sound/soc/rockchip/rockchip_rt5645.c index 4db4fd56db35..881c32498808 100644 --- a/sound/soc/rockchip/rockchip_rt5645.c +++ b/sound/soc/rockchip/rockchip_rt5645.c @@ -181,7 +181,8 @@ static int snd_rk_mc_probe(struct platform_device *pdev) if (!rk_dailink.cpu_of_node) { dev_err(&pdev->dev, "Property 'rockchip,i2s-controller' missing or invalid\n"); - return -EINVAL; + ret = -EINVAL; + goto put_codec_of_node; } rk_dailink.platform_of_node = rk_dailink.cpu_of_node; @@ -190,17 +191,36 @@ static int snd_rk_mc_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Soc parse card name failed %d\n", ret); - return ret; + goto put_cpu_of_node; } ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) { dev_err(&pdev->dev, "Soc register card failed %d\n", ret); - return ret; + goto put_cpu_of_node; } return ret; + +put_cpu_of_node: + of_node_put(rk_dailink.cpu_of_node); + rk_dailink.cpu_of_node = NULL; +put_codec_of_node: + of_node_put(rk_dailink.codec_of_node); + rk_dailink.codec_of_node = NULL; + + return ret; +} + +static int snd_rk_mc_remove(struct platform_device *pdev) +{ + of_node_put(rk_dailink.cpu_of_node); + rk_dailink.cpu_of_node = NULL; + of_node_put(rk_dailink.codec_of_node); + rk_dailink.codec_of_node = NULL; + + return 0; } static const struct of_device_id rockchip_rt5645_of_match[] = { @@ -212,6 +232,7 @@ MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match); static struct platform_driver snd_rk_mc_driver = { .probe = snd_rk_mc_probe, + .remove = snd_rk_mc_remove, .driver = { .name = DRV_NAME, .pm = &snd_soc_pm_ops, |