[PATCH] staging: vme: fix error return code in vme_user_probe()

Dan Carpenter dan.carpenter at oracle.com
Mon May 13 08:51:32 UTC 2013


On Mon, May 13, 2013 at 09:16:00AM +0100, Martyn Welch wrote:
> On 13/05/13 07:05, Wei Yongjun wrote:
> > From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
> > 
> > Fix to return -ENOMEM in the resource alloc error handling
> > case instead of 0, as done elsewhere in this function.
> > 
> 
> Hi Wei,
> 
> Thanks for your patch. As this is resource allocation rather than memory
> allocation that is failing, would -EAGAIN not make more sense than -ENOMEM?
> 

ENOMEM is better.  EAGAIN is for when trylock() fails etc.  In other
words we are not allowed to block and someone is using the lock we
need.

It feels like we discuss error codes a lot on LKML and they should
be documented under Documententation/.  The closest thing is
Documentation/i2c/fault-codes.

regards,
dan carpenter



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