diff options
| author | Yuan Can <yuancan@huawei.com> | 2022-11-25 01:43:29 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-08 11:30:18 +0100 |
| commit | a41ec58ac352fd176d5808af847663dc890f6053 (patch) | |
| tree | 002a796bff058b8ce7cc333fc28702325d863a3f | |
| parent | f598da27acbeee414679cacd14294db3e273e3d2 (diff) | |
hwmon: (asus-ec-sensors) Add checks for devm_kcalloc
[ Upstream commit 9bdc112be727cf1ba65be79541147f960c3349d8 ]
As the devm_kcalloc may return NULL, the return value needs to be checked
to avoid NULL poineter dereference.
Fixes: d0ddfd241e57 ("hwmon: (asus-ec-sensors) add driver for ASUS EC")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Link: https://lore.kernel.org/r/20221125014329.121560-1-yuancan@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/hwmon/asus-ec-sensors.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hwmon/asus-ec-sensors.c b/drivers/hwmon/asus-ec-sensors.c index 81e688975c6a..a901e4e33d81 100644 --- a/drivers/hwmon/asus-ec-sensors.c +++ b/drivers/hwmon/asus-ec-sensors.c @@ -938,6 +938,8 @@ static int asus_ec_probe(struct platform_device *pdev) ec_data->nr_sensors = hweight_long(ec_data->board_info->sensors); ec_data->sensors = devm_kcalloc(dev, ec_data->nr_sensors, sizeof(struct ec_sensor), GFP_KERNEL); + if (!ec_data->sensors) + return -ENOMEM; status = setup_lock_data(dev); if (status) { |