• Miquel Raynal's avatar
    hwmon: (gpio-fan) Fix null pointer dereference at probe · 534e28d8
    Miquel Raynal authored
    A previous commit changed the argument list of gpio_fan_get_of_data(),
    removing the "struct *dev" argument and retrieving it instead from the
    gpio_fan_data structure. The "dev" entry of gpio_fan_data was then
    dereferenced to access the of_node field, leading to a kernel panic
    during the probe as the "dev" entry of the gpio_fan_data structure was
    not filled yet.
    
    Fix this by setting fan_data->dev before calling gpio_fan_get_of_data().
    
    Fixes: 5859d8d30737 ("hwmon: (gpio-fan) Get rid of platform data struct")
    Signed-off-by: default avatarMiquel Raynal <miquel.raynal@free-electrons.com>
    Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
    534e28d8
gpio-fan.c 14.6 KB