removing busy device driver

[johny10151981]

On a learning purpose i have developed a 10-20 line device driver program.

Now I am stuck with the driver.

#rmmod hello
Error: Removing 'hello': Device or Resource is busy

How would I remove this?

I have tried this as root user

[ashitpro]

have you tried

rmmod --force hello

[johny10151981]

nope,
But it worked fine. Thank you :)