1 files changed, 3 insertions, 2 deletions

diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index adbc68ce9050..f6b0d2829ea9 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -203,8 +203,9 @@ static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg,
         data[1] = (value >> 8) & 0xff;
         data[2] = value & 0xff;
 
-        if (!snd_soc_codec_volatile_register(codec, reg))
-                reg_cache[reg] = value;
+        if (!snd_soc_codec_volatile_register(codec, reg)
+                && reg < codec->reg_cache_size)
+                        reg_cache[reg] = value;
 
         if (codec->cache_only) {
                 codec->cache_sync = 1;