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>
diff --git a/drivers/power/s3c_adc_battery.c b/drivers/power/s3c_adc_battery.c
index d2ca989..5948ce0 100644
--- a/drivers/power/s3c_adc_battery.c
+++ b/drivers/power/s3c_adc_battery.c
@@ -145,14 +145,17 @@
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) {