diff options
| author |   Syam Sidhardhan <syamsidhardh@gmail.com> | 2013-02-25 04:33:25 +0530 |
|---|---|---|
| committer |   Anton Vorontsov <anton@enomsg.org> | 2013-03-18 19:43:03 -0700 |
| commit | c6cc9fc9d42ec82da2c770f0bef1488dc467f29c (patch) | |
| tree | 792940a7c9afc196d69453b2b96b8c65f7dd3fe9 /drivers/power/s3c_adc_battery.c | |
| parent | test_power: Fix a bug in setting module parameter values (diff) | |
| download | linux-dev-c6cc9fc9d42ec82da2c770f0bef1488dc467f29c.tar.xz linux-dev-c6cc9fc9d42ec82da2c770f0bef1488dc467f29c.zip | |
s3c-adc-battery: Fix possible NULL pointer dereference
Check for (bat == NULL) has to be done before accessing bat
Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
Diffstat (limited to 'drivers/power/s3c_adc_battery.c')
| -rw-r--r-- | drivers/power/s3c_adc_battery.c | 7 |
1 files changed, 5 insertions, 2 deletions
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) { |