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From: Ricardo Ribalda <ribalda@chromium.org>
Date: Mon, 15 Apr 2024 19:34:39 +0000
Subject: [PATCH 22/35] media: i2c: st-mipid02: Use the correct div function
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To: Martin Tuma <martin.tuma@digiteqautomotive.com>, 
 Mauro Carvalho Chehab <mchehab@kernel.org>, 
 Laurent Pinchart <laurent.pinchart@ideasonboard.com>, 
 Hans Verkuil <hverkuil-cisco@xs4all.nl>, 
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 Samuel Holland <samuel@sholland.org>, 
 Sakari Ailus <sakari.ailus@linux.intel.com>, 
 Thierry Reding <thierry.reding@gmail.com>, 
 Jonathan Hunter <jonathanh@nvidia.com>, 
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 Hans Verkuil <hverkuil@xs4all.nl>, Sergey Kozlov <serjk@netup.ru>, 
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 Dmitry Osipenko <digetx@gmail.com>, 
 Stanimir Varbanov <stanimir.k.varbanov@gmail.com>, 
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 Bryan O'Donoghue <bryan.odonoghue@linaro.org>, 
 Bjorn Andersson <andersson@kernel.org>, 
 Konrad Dybcio <konrad.dybcio@linaro.org>, 
 Benjamin Mugnier <benjamin.mugnier@foss.st.com>, 
 Sylvain Petinot <sylvain.petinot@foss.st.com>, 
 Jacopo Mondi <jacopo+renesas@jmondi.org>, 
 Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>, 
 Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>, 
 =?utf-8?q?Niklas_S=C3=B6derlund?= <niklas.soderlund+renesas@ragnatech.se>, 
 Pavel Machek <pavel@ucw.cz>
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.

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..93a40bfda1af 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_s64(ui_4, link_freq);
 	bridge->r.clk_lane_reg1 |= ui_4 << 2;
 
 	return 0;

-- 
2.44.0.683.g7961c838ac-goog