From: Yuan Can Date: Fri, 25 Nov 2022 01:43:29 +0000 (+0000) Subject: hwmon: (asus-ec-sensors) Add checks for devm_kcalloc X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9bdc112be727cf1ba65be79541147f960c3349d8;p=linux.git hwmon: (asus-ec-sensors) Add checks for devm_kcalloc 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 Link: https://lore.kernel.org/r/20221125014329.121560-1-yuancan@huawei.com Signed-off-by: Guenter Roeck --- diff --git a/drivers/hwmon/asus-ec-sensors.c b/drivers/hwmon/asus-ec-sensors.c index 81e688975c6a7..a901e4e33d81d 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) {