Problem in First-Patch-Tutorial

Reloading Modules make -j2 && sudo make modules_install sudo modprobe -r <module_name> sudo modprobe <module_name> In Reloading Modules I tried the first command it works fine for me. git/kernels/staging$ ls drivers/iio/dummy/*.ko drivers/iio/dummy/iio_dummy_evgen.ko drivers/iio/dummy/iio_dummy.ko Then I tried to run second-command git/kernels/staging$ sudo modprobe -r iio_dummy_evgen I got the following error:- modprobe: FATAL: Module iio_dummy_evgen not found. I am not getting what is wrong with this.