Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-05 02:23:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

ASoC: wm8962: Fix null pointer pdata access in I2C probe()

Browse Source 
When using DT binding to pass private data, there would be Kernel panic
occuring due to NULL pointer access in wm8962_i2c_probe(). Thus fix it.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Nicolin Chen 2013-10-29 17:06:27 +08:00 committed by Mark Brown
parent 78b78f5c01
commit b5ef3f2a80
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sound/soc/codecs/wm8962.c
View File

@ -3616,28 +3616,28 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
0);
/* Apply static configuration for GPIOs */
for (i = 0; i < ARRAY_SIZE(pdata->gpio_init); i++)
if (pdata->gpio_init[i]) {
for (i = 0; i < ARRAY_SIZE(wm8962->pdata.gpio_init); i++)
if (wm8962->pdata.gpio_init[i]) {
wm8962_set_gpio_mode(wm8962, i + 1);
regmap_write(wm8962->regmap, 0x200 + i,
pdata->gpio_init[i] & 0xffff);
wm8962->pdata.gpio_init[i] & 0xffff);
}
/* Put the speakers into mono mode? */
if (pdata->spk_mono)
if (wm8962->pdata.spk_mono)
regmap_update_bits(wm8962->regmap, WM8962_CLASS_D_CONTROL_2,
WM8962_SPK_MONO_MASK, WM8962_SPK_MONO);
/* Micbias setup, detection enable and detection
* threasholds. */
if (pdata->mic_cfg)
if (wm8962->pdata.mic_cfg)
regmap_update_bits(wm8962->regmap, WM8962_ADDITIONAL_CONTROL_4,
WM8962_MICDET_ENA |
WM8962_MICDET_THR_MASK |
WM8962_MICSHORT_THR_MASK |
WM8962_MICBIAS_LVL,
pdata->mic_cfg);
wm8962->pdata.mic_cfg);
/* Latch volume update bits */
regmap_update_bits(wm8962->regmap, WM8962_LEFT_INPUT_VOLUME,
@ -3682,7 +3682,7 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
}
if (wm8962->irq) {
if (pdata->irq_active_low) {
if (wm8962->pdata.irq_active_low) {
trigger = IRQF_TRIGGER_LOW;
irq_pol = WM8962_IRQ_POL;
} else {