From: Syam Sidhardhan <syamsidhardh@gmail.com>
To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: syamsidhardh@gmail.com, dwmw2@infradead.org, cbou@mail.ru
Subject: [PATCH] s3c-adc-battery: Fix possible NULL pointer dereference
Date: Mon, 25 Feb 2013 04:33:25 +0530 [thread overview]
Message-ID: <1361747005-29306-1-git-send-email-s.syam@samsung.com> (raw)
Check for (bat == NULL) has to be done before accessing bat
Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
---
drivers/power/s3c_adc_battery.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
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 @@ 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) {
--
1.7.9.5
next reply other threads:[~2013-02-24 23:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-24 23:03 Syam Sidhardhan [this message]
2013-03-19 2:43 ` Anton Vorontsov
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