On Fri, Dec 06, 2019 at 11:09:57AM +0530, shubhrajyoti.datta@xxxxxxxxx wrote: > +/** > + * xflex_remove - Driver remove function > + * @pdev: Pointer to the platform_device structure > + * > + * This function frees all the resources allocated to the device. > + * > + * Return: 0 always > + */ No need for kerneldoc documentation for static functions. > +static int xflex_remove(struct platform_device *pdev) > +{ > + sysfs_remove_groups(&pdev->dev.kobj, xflex_groups); Your attribute groups can, and should, be automatically created by the driver core. Set the driver's dev_groups pointer and that will happen for you. thanks, greg k-h