[PATCH] ASoC: rockchip: Fix an error handling in 'rockchip_i2s_probe'

From: Christophe JAILLET
Date: Thu Jun 15 2017 - 01:53:25 EST


If this memory allocation fail, we must disable what has been enabled.
Do not return immediately but go thrue the error handling path instead.

Also use 'devm_kmemdup' instead of 'devm_kzalloc+memcpy' to simplify code.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
sound/soc/rockchip/rockchip_i2s.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index af5e0da144f7..f3aa3dfe914b 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -643,12 +643,13 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
goto err_pm_disable;
}

- soc_dai = devm_kzalloc(&pdev->dev,
+ soc_dai = devm_kmemdup(&pdev->dev, &rockchip_i2s_dai
sizeof(*soc_dai), GFP_KERNEL);
- if (!soc_dai)
- return -ENOMEM;
+ if (!soc_dai) {
+ err = -ENOMEM;
+ goto err_pm_disable;
+ }

- memcpy(soc_dai, &rockchip_i2s_dai, sizeof(*soc_dai));
if (!of_property_read_u32(node, "rockchip,playback-channels", &val)) {
if (val >= 2 && val <= 8)
soc_dai->playback.channels_max = val;
--
2.11.0