提交 e13ab2aa 编写于 作者: F Fabio Estevam 提交者: Mark Brown

ASoC: mc13783: Provide codec->control_data

If codec->control_data is not provided, the following crash happens:

Unable to handle kernel NULL pointer dereference at virtual address 00000078
pgd = 80004000
[00000078] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0    Tainted: G        W     (3.5.0-next-20120725+ #1263)
PC is at regmap_read+0x18/0x64
LR is at hw_read+0x50/0x98
pc : [<802bcd90>]    lr : [<803cad18>]    psr: 60000013
...
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
上级 aa50fe55
......@@ -581,6 +581,8 @@ static int mc13783_probe(struct snd_soc_codec *codec)
{
struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
codec->control_data = priv->mc13xxx;
mc13xxx_lock(priv->mc13xxx);
/* these are the reset values */
......
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