ASoC: fix a memory-leak in wm8903

Remember to free the temporary register-cache.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org

diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index ce5515e3f2b0bb9852e856b49e1ddec0fa430511..3595bd57c4eb8911bf7a63a8122028a746aaf931 100644 (file)
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1504,7 +1504,7 @@ static int wm8903_resume(struct platform_device *pdev)
        struct i2c_client *i2c = codec->control_data;
        int i;
        u16 *reg_cache = codec->reg_cache;
-       u16 *tmp_cache = kmemdup(codec->reg_cache, sizeof(wm8903_reg_defaults),
+       u16 *tmp_cache = kmemdup(reg_cache, sizeof(wm8903_reg_defaults),
                                 GFP_KERNEL);
 
        /* Bring the codec back up to standby first to minimise pop/clicks */
@@ -1516,6 +1516,7 @@ static int wm8903_resume(struct platform_device *pdev)
                for (i = 2; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
                        if (tmp_cache[i] != reg_cache[i])
                                snd_soc_write(codec, i, tmp_cache[i]);
+               kfree(tmp_cache);
        } else {
                dev_err(&i2c->dev, "Failed to allocate temporary cache\n");
        }