提交 c776357e 编写于 作者: J Jarkko Nikula 提交者: Liam Girdwood

ASoC: tlv320aic3x: Fix null pointer dereference when pdata is not set

Null pointer dereference will occur from *setup = pdata->setup if pdata
is not set. Fix this by moving assignments from pdata inside non-null case.

Thanks to Jiri Slaby <jirislaby@gmail.com> for noticing.
Signed-off-by: NJarkko Nikula <jhnikula@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NLiam Girdwood <lrg@slimlogic.co.uk>
上级 098b1718
......@@ -1360,7 +1360,6 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct aic3x_pdata *pdata = i2c->dev.platform_data;
struct aic3x_setup_data *setup = pdata->setup;
struct aic3x_priv *aic3x;
int ret, i;
const struct i2c_device_id *tbl;
......@@ -1372,15 +1371,18 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
}
aic3x->control_data = i2c;
aic3x->setup = setup;
i2c_set_clientdata(i2c, aic3x);
if (pdata) {
aic3x->gpio_reset = pdata->gpio_reset;
aic3x->setup = pdata->setup;
} else {
aic3x->gpio_reset = -1;
}
aic3x->gpio_reset = -1;
if (pdata && pdata->gpio_reset >= 0) {
ret = gpio_request(pdata->gpio_reset, "tlv320aic3x reset");
if (aic3x->gpio_reset >= 0) {
ret = gpio_request(aic3x->gpio_reset, "tlv320aic3x reset");
if (ret != 0)
goto err_gpio;
aic3x->gpio_reset = pdata->gpio_reset;
gpio_direction_output(aic3x->gpio_reset, 0);
}
......
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