Re: [PATCH 0/2] mmc: allow mmc_alloc_host() and tmio_mmc_host_alloc()

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On Thu, Nov 10, 2016 at 10:24:21PM +0900, Masahiro Yamada wrote:
> 
> sdhci_alloc_host() returns an error pointer when it fails.
> but mmc_alloc_host() cannot.
> 
> This series allow to propagate a proper error code
> when host-allocation fails.

Why?  What can we really do about the error except give up?  Why does
having a explicit error value make any difference to the caller, they
can't do anything different, right?

I suggest just leaving it as-is, it's simple, and you don't have to mess
with PTR_ERR() anywhere.

thanks,

greg k-h
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