Hi, I did del_timer only before closing the device file and there was no OOPS. Is it necessary to do del_timer(_sync) before closing the device/ unloading the device? ~Abu Abu M. Muttalib Sr. Engineer, Embedded System, Aftek Infosys Ltd., Pune, India Office: 91-20-25449260-65 X-256 Mobile: (0)9881322820 Email: abum@xxxxxxxxx -----Original Message----- From: kernelnewbies-bounce@xxxxxxxxxxxx [mailto:kernelnewbies-bounce@xxxxxxxxxxxx]On Behalf Of Arjan van de Ven Sent: Saturday, February 25, 2006 9:23 PM To: Abu M. Muttalib Cc: kernelnewbies@xxxxxxxxxxxx Subject: RE: Timer manipulation in 2.6.13 On Sun, 2006-02-26 at 08:59 +0530, Abu M. Muttalib wrote: > Hi Arjan, > > Thanks again. > > I guess you defined the function modify_timer to return void and you have run the driver only once. I ran it several times, at least the echo you said I did not unload and then reload the driver; if you do that to get the oops then yes you need to do del_timer_sync() before the unload! (and you need the _sync version, not just the regular del_timer() because you want to be really sure that the timer is finished before the module goes away) -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
