On Tue, Jun 09, 2015 at 09:27:22AM +0000, Gujulan Elango, Hari Prasath (H.) wrote: > From: Hari Prasath Gujulan Elango <hgujulan@xxxxxxxxxxx> > > Cleanup the device entry,device class & unregister the character device > in the module exit.All this cleanup is done already in the dgap_stop() > function.We need to call this in the cleanup module. No. this is wrong. The same thing what dgap_stop() does is being done in dgap_remove_one() which is the remove callback. So your patch is trying to destroy and unregister something which does not exist at the time dgap_stop() will be called. regards sudip > _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
