Re: request_region return value check

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On Mon, Jul 15, 2013 at 04:20:26PM +0300, Dan Carpenter wrote:
> On Sun, Jul 14, 2013 at 11:00:58PM +0530, Vivek Subbarao wrote:
> > There are many places where the return value from request_region is not
> > checked for null value. This is required right ? I am just checking
> > before I can send patched fixing them
> 
> Most of the time, but not always.
> 
> Sometimes people know it will succeed.  The first one I looked at
> in drivers/acpi/acpi_processor.c the caller doesn't care if it
> succeeds and there is a comment explaining why.
>
I see a lot of calls to request_region in __init calls. For example
there is a call in netwinder-hw.c:wb977_init. Should they be checking
for the return value ?
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