Received-SPF: pass (google.com: domain of linux-kernel+bounces-162531-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249;
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Mon, 29 Apr 2024 15:05:00 +0000
Subject: [PATCH v3 21/26] media: i2c: st-mipid02: Use the correct div
 function
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Message-Id: <20240429-fix-cocci-v3-21-3c4865f5a4b0@chromium.org>
References: <20240429-fix-cocci-v3-0-3c4865f5a4b0@chromium.org>
In-Reply-To: <20240429-fix-cocci-v3-0-3c4865f5a4b0@chromium.org>
To: 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>, 
 Abylay Ospan <aospan@netup.ru>, 
 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>, 
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>, 
 Bjorn Andersson <andersson@kernel.org>, 
 Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, 
 linux-stm32@st-md-mailman.stormreply.com, 
 linux-arm-kernel@lists.infradead.org, linux-staging@lists.linux.dev, 
 linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, 
 linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, 
 Ricardo Ribalda <ribalda@chromium.org>

link_freq does not fit in 32 bits.

Found by cocci:
drivers/media/i2c/st-mipid02.c:329:1-7: WARNING: do_div() does a 64-by-32 division, please consider using div64_s64 instead.

Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
 drivers/media/i2c/st-mipid02.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/st-mipid02.c b/drivers/media/i2c/st-mipid02.c
index f250640729ca..b947a55281f0 100644
--- a/drivers/media/i2c/st-mipid02.c
+++ b/drivers/media/i2c/st-mipid02.c
@@ -326,7 +326,7 @@ static int mipid02_configure_from_rx_speed(struct mipid02_dev *bridge,
 	}
 
 	dev_dbg(&client->dev, "detect link_freq = %lld Hz", link_freq);
-	do_div(ui_4, link_freq);
+	ui_4 = div64_u64(ui_4, link_freq);
 	bridge->r.clk_lane_reg1 |= ui_4 << 2;
 
 	return 0;

-- 
2.44.0.769.g3c40516874-goog