ASoC: core: fix possible memory leak in snd_soc_bytes_put()

'data' is malloced in snd_soc_bytes_put() and should be freed
before leaving from the error handling cases, otherwise it will cause
memory leak.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index b7e84a7cd9ee70451e453f9ef8febb23f3ad05ab..93341deaa4b9b565a8b2128cf0d7215b3c9eee30 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3140,7 +3140,7 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
        if (params->mask) {
                ret = regmap_read(codec->control_data, params->base, &val);
                if (ret != 0)
-                       return ret;
+                       goto out;
 
                val &= params->mask;
 
@@ -3158,13 +3158,15 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
                        ((u32 *)data)[0] |= cpu_to_be32(val);
                        break;
                default:
-                       return -EINVAL;
+                       ret = -EINVAL;
+                       goto out;
                }
        }
 
        ret = regmap_raw_write(codec->control_data, params->base,
                               data, len);
 
+out:
        kfree(data);
 
        return ret;