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hwmon: Register thermal zone only if 'dev' parameter was provided 

Rgistering a thermal zone uses devm_kzalloc(), which requires
a pointer to the parent device.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2017-01-31 03:56:08 -08:00
parent 74d3b64197
commit 319fe15988
1 changed files with 1 additions and 1 deletions
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2
drivers/hwmon/hwmon.c
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@ -608,7 +608,7 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
if (err)
goto free_hwmon;
if (chip && chip->ops->read &&
if (dev && chip && chip->ops->read &&
chip->info[0]->type == hwmon_chip &&
(chip->info[0]->config[0] & HWMON_C_REGISTER_TZ)) {
const struct hwmon_channel_info **info = chip->info;