Re: [PATCH] ALSA: sonicvibes: add error handling for snd_ctl_add

From: Takashi Iwai
Date: Mon Jun 11 2018 - 09:26:09 EST

On Mon, 11 Jun 2018 10:08:40 +0200,
Zhouyang Jia wrote:
> When snd_ctl_add fails, the lack of error-handling code may
> cause unexpected results.
> This patch adds error-handling code after calling snd_ctl_add.
> Signed-off-by: Zhouyang Jia <jiazhouyang09@xxxxxxxxx>

I postpone this one because the change won't give anything as is
although this change itself is correct. If you look at the code
closely, the caller of snd_sonicvibes_create_gameport() ignores the
return value.
So we need to fix two places.