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mfd: 88pm800: Fix potential NULL pdata dereference

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User pass platform data to device, and platform data may be
NULL. Add the check for pdata.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Chao Xie 2013-08-18 21:27:54 -04:00 committed by Samuel Ortiz
parent f4388ca7f1
commit b432fc25b5
1 changed files with 6 additions and 4 deletions
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10
drivers/mfd/88pm800.c
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@ -333,9 +333,11 @@ static int device_rtc_init(struct pm80x_chip *chip,
{
int ret;
rtc_devs[0].platform_data = pdata->rtc;
rtc_devs[0].pdata_size =
pdata->rtc ? sizeof(struct pm80x_rtc_pdata) : 0;
if (pdata) {
rtc_devs[0].platform_data = pdata->rtc;
rtc_devs[0].pdata_size =
pdata->rtc ? sizeof(struct pm80x_rtc_pdata) : 0;
}
ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
ARRAY_SIZE(rtc_devs), NULL, 0, NULL);
if (ret) {
@ -578,7 +580,7 @@ static int pm800_probe(struct i2c_client *client,
goto err_device_init;
}
if (pdata->plat_config)
if (pdata && pdata->plat_config)
pdata->plat_config(chip, pdata);
return 0;