Re: [patch 2/2] ALSA: oxfw: fix detect_loud_models() return value

From: Takashi Sakamoto
Date: Fri Dec 12 2014 - 23:46:22 EST


On Dec 13 2014 04:28, Dan Carpenter wrote:
> This code causes a static checker warning:
>
> sound/firewire/oxfw/oxfw.c:46 detect_loud_models()
> warn: signedness bug returning '(-2)'
>
> The detect_loud_models() function should return false on falure, so that
> we don't try to set up the loud code for hardware that doesn't support
> it.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
> index cf1d0b5..60e5cad 100644
> --- a/sound/firewire/oxfw/oxfw.c
> +++ b/sound/firewire/oxfw/oxfw.c
> @@ -43,7 +43,7 @@ static bool detect_loud_models(struct fw_unit *unit)
> err = fw_csr_string(unit->directory, CSR_MODEL,
> model, sizeof(model));
> if (err < 0)
> - return err;
> + return false;
>
> for (i = 0; i < ARRAY_SIZE(models); i++) {
> if (strcmp(models[i], model) == 0)

Reviewd-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>


Thanks

Takashi Sakamoto
o-takashi@xxxxxxxxxxxxx
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