ASoC: soc-cache: Fix invalid memory access during snd_soc_lzo_cache_sync()

The size of the lzo syncing bitmap was incorrectly set to the size
of the cache times the word size, however, the correct size is the
size of the cache.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/soc-cache.c

@@ -1361,7 +1361,7 @@ static int snd_soc_lzo_cache_init(struct snd_soc_codec *codec)
 			goto err;
 		}
 		lzo_blocks[i]->sync_bmp = sync_bmp;
-		lzo_blocks[i]->sync_bmp_nbits = reg_size;
+		lzo_blocks[i]->sync_bmp_nbits = bmp_size;
 		/* alloc the working space for the compressed block */
 		ret = snd_soc_lzo_prepare(lzo_blocks[i]);
 		if (ret < 0)