From c6cc9fc9d42ec82da2c770f0bef1488dc467f29c Mon Sep 17 00:00:00 2001 From: Syam Sidhardhan Date: Mon, 25 Feb 2013 04:33:25 +0530 Subject: s3c-adc-battery: Fix possible NULL pointer dereference Check for (bat == NULL) has to be done before accessing bat Signed-off-by: Syam Sidhardhan Signed-off-by: Anton Vorontsov --- drivers/power/s3c_adc_battery.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/power/s3c_adc_battery.c') diff --git a/drivers/power/s3c_adc_battery.c b/drivers/power/s3c_adc_battery.c index d2ca989dcbdc..5948ce058bdd 100644 --- a/drivers/power/s3c_adc_battery.c +++ b/drivers/power/s3c_adc_battery.c @@ -145,14 +145,17 @@ static int s3c_adc_bat_get_property(struct power_supply *psy, int new_level; int full_volt; - const struct s3c_adc_bat_thresh *lut = bat->pdata->lut_noac; - unsigned int lut_size = bat->pdata->lut_noac_cnt; + const struct s3c_adc_bat_thresh *lut; + unsigned int lut_size; if (!bat) { dev_err(psy->dev, "no battery infos ?!\n"); return -EINVAL; } + lut = bat->pdata->lut_noac; + lut_size = bat->pdata->lut_noac_cnt; + if (bat->volt_value < 0 || bat->cur_value < 0 || jiffies_to_msecs(jiffies - bat->timestamp) > BAT_POLL_INTERVAL) { -- cgit v1.2.1