Re: [PATCH] SUNRPC: svc_register error overwritten in next iteration

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On Mar 14, 2011, at 6:36 PM, J. Bruce Fields wrote:

> On Sat, Mar 12, 2011 at 02:27:35PM +0100, roel wrote:
>> The break is in the inner loop, the svc_register() error is overwritten
>> in the next iteration. Only the error in the last iteration is returned.
>> 
>> Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
>> ---
>> net/sunrpc/svc.c |    2 ++
>> 1 files changed, 2 insertions(+), 0 deletions(-)
>> 
>> Is this needed?
>> 
>> diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
>> index 08e05a8..5fd08c0 100644
>> --- a/net/sunrpc/svc.c
>> +++ b/net/sunrpc/svc.c
>> @@ -889,6 +889,8 @@ int svc_register(const struct svc_serv *serv, const int family,
>> 			if (error < 0)
>> 				break;
> 
> May as well just "goto out" or "return error" here?
> 
> But: aren't we missing some cleanup?  If we succesfully register one
> program then fail at a second one, don't we need to unregister the
> first?

Right.  I don't understand what is the intended effect here (of the original code):  Best effort registration, or "all or none"?

> --b.
> 
>> 		}
>> +		if (error < 0)
>> +			break;
>> 	}
>> 
>> 	return error;
> --
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-- 
Chuck Lever
chuck[dot]lever[at]oracle[dot]com




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