Re: Hello driver

[Tyler <tyler@xxxxxxxx>]

Thomas Petazzoni wrote:
> Hello,
>
> Greg KH wrote:
>
> > >     down_interruptible(&sem) ;
> >
> >
> > Why interruptible?
>
>
> Another remark : if you really need to use down_interruptible() (for 
> some reason), be sure to check the return value of this function. As the 
> name says, when you call this function, you can be interrupted by a 
> signal. So, you should not assume that once down_interruptible() as 
> returned, you own the corresponding semaphore : you may have been 
> interrupted by a signal.
>
> Sincerly,
>
> Thomas
Ok, but in fact I'v no reason to use the interruptible locking 
semaphores function.
Thx anyway :)

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