ASoC: Don't use wm8994->control_data in wm8994_readable_register()

commit 8eeea521d9d0fa6afd62df8c6e6566ee946117fa upstream.

The field is no longer initialised so this will crash if running on
wm8958.

Reported-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index fb9f08ab84c12b40f42012434d3d160a40fb75ed..21949123787564ccb1a9a5f4e766f7411aabfd69 100644 (file)
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -56,7 +56,7 @@ static int wm8994_retune_mobile_base[] = {
 static int wm8994_readable(struct snd_soc_codec *codec, unsigned int reg)
 {
        struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
-       struct wm8994 *control = wm8994->control_data;
+       struct wm8994 *control = codec->control_data;
 
        switch (reg) {
        case WM8994_GPIO_1: