• Guenter Roeck's avatar
    ACPI: fan: Initialize performance state sysfs attribute · 7dc7a8b0
    Guenter Roeck authored
    The following warning is reported if lock debugging is enabled.
    
    DEBUG_LOCKS_WARN_ON(1)
    WARNING: CPU: 1 PID: 1 at kernel/locking/lockdep.c:4617 lockdep_init_map_waits+0x141/0x222
    ...
    Call Trace:
     __kernfs_create_file+0x7a/0xd8
     sysfs_add_file_mode_ns+0x135/0x189
     sysfs_create_file_ns+0x70/0xa0
     acpi_fan_probe+0x547/0x621
     platform_drv_probe+0x67/0x8b
     ...
    
    Dynamically allocated sysfs attributes need to be initialized to avoid
    the warning.
    
    Fixes: d19e470b ("ACPI: fan: Expose fan performance state information")
    Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
    Cc: 5.6+ <stable@vger.kernel.org> # 5.6+
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    7dc7a8b0
fan.c 12.3 KB