Re: [rtl] Can't Unload Modules - "in use"

[Iwo Mergler <Iwo.Mergler@soton.sc.philips.com>]

"Estabridis, Janet P" wrote:
> 
> Hi,
> Sorry I am not at my machine to get the exact message and I haven't gotten
> to check the archives, but I figure someone can steer me in the correct
> direction.
> 
> I am using RTLV2.3 with kernel 2.2.14
> 
> I have four modules, three of them just contain routines that the main
> modules calls.
> 
> bit.o
> vig.o
> tspi.o
> rt_main.o
> 
> When I try and remove the modules with "rmmod" I get that it can't be
> removed because the modules are in use.  I use "lsmod" and try and remove
> them in the correct order, but still it won't let me remove any of them.  I
> have to re-boot.
> 

You could keep a backdoor open, either via /proc or maybe 
a timeout to run this code when needed:

while (MOD_IN_USE) MOD_DEC_USE_COUNT;

This resets the usage counter and should allow you 
to remove the module.

Regards,

Iwo