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Date: Sun, 21 Apr 2024 00:07:55 +0100
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Subject: Re: [PATCH v2 02/26] media: stb0899: Simplify check
To: Ricardo Ribalda <ribalda@chromium.org>,
 Martin Tuma <martin.tuma@digiteqautomotive.com>,
 Mauro Carvalho Chehab <mchehab@kernel.org>,
 Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
 Hugues Fruchet <hugues.fruchet@foss.st.com>,
 Alain Volmat <alain.volmat@foss.st.com>,
 Maxime Coquelin <mcoquelin.stm32@gmail.com>,
 Alexandre Torgue <alexandre.torgue@foss.st.com>,
 Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Chen-Yu Tsai
 <wens@csie.org>, Jernej Skrabec <jernej.skrabec@gmail.com>,
 Samuel Holland <samuel@sholland.org>,
 Sakari Ailus <sakari.ailus@linux.intel.com>,
 Thierry Reding <thierry.reding@gmail.com>,
 Jonathan Hunter <jonathanh@nvidia.com>,
 Sowjanya Komatineni <skomatineni@nvidia.com>,
 Luca Ceresoli <luca.ceresoli@bootlin.com>,
 Matthias Brugger <matthias.bgg@gmail.com>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,
 Hans Verkuil <hverkuil@xs4all.nl>, Sergey Kozlov <serjk@netup.ru>,
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 Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
 Dmitry Osipenko <digetx@gmail.com>,
 Benjamin Mugnier <benjamin.mugnier@foss.st.com>,
 Sylvain Petinot <sylvain.petinot@foss.st.com>,
 Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
 Vikash Garodia <quic_vgarodia@quicinc.com>,
 Bjorn Andersson <andersson@kernel.org>,
 Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
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References: <20240419-fix-cocci-v2-0-2119e692309c@chromium.org>
 <20240419-fix-cocci-v2-2-2119e692309c@chromium.org>
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From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
In-Reply-To: <20240419-fix-cocci-v2-2-2119e692309c@chromium.org>
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On 19/04/2024 10:47, Ricardo Ribalda wrote:
> chip_id is an unsigned number, it can never be < 0
> 
> Fixes cocci check:
> drivers/media/dvb-frontends/stb0899_drv.c:1280:8-15: WARNING: Unsigned expression compared with zero: chip_id > 0
> 
> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
> ---
>   drivers/media/dvb-frontends/stb0899_drv.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/dvb-frontends/stb0899_drv.c b/drivers/media/dvb-frontends/stb0899_drv.c
> index 2f4d8fb400cd..35634f9a8ab5 100644
> --- a/drivers/media/dvb-frontends/stb0899_drv.c
> +++ b/drivers/media/dvb-frontends/stb0899_drv.c
> @@ -1277,7 +1277,7 @@ static int stb0899_get_dev_id(struct stb0899_state *state)
>   	dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
>   	CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
>   	fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
> -	if (! (chip_id > 0)) {
> +	if (!chip_id) {
>   		dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
>   
>   		return -ENODEV;
> 

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>