Re: [PATCH] ALSA: emu10k1: fix error codes

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On Fri, 21 Apr 2023 19:26:23 +0200,
Oswald Buddenhagen wrote:
> 
> One might argue that this potentially breaks user space, but a) this is
> just one driver among many, so it seems unlikely that someone would
> expect (only) the broken codes and b) it seems unlikely that someone
> would check these syscalls for particular errors at all, rather than
> just logging them (this might be debatable for the voice allocator
> calls).
> 
> Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@xxxxxx>

I find this is too risky for really little win.  The error code is
returned to user space in quite many cases; e.g. the voice allocator
is called from PCM hw_params, too, and that's most of user-space
programs do actually check.  It could be a surprise if it's changed
without much reason, may trigger unexpected behavior changes.

Of course, if the error code must be corrected, we can fix it.
But I don't see it in this patch description.


thanks,

Takashi



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