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Wed, 19 Feb 2025 02:54:34 -0800 (PST) From: Chongchong Gu To: vkoul@kernel.org Cc: kishon@kernel.org, aford173@gmail.com, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, guchongchong Subject: [PATCH v3 1/1] phy: freescale: limit div value in FIELD_PREP() Date: Wed, 19 Feb 2025 18:54:11 +0800 Message-ID: <19ac11d6b9e5988d190025255c5ffe08c57c8023.1739961770.git.guchongchong@xiaomi.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: guchongchong In fsl_samsung_hdmi_phy_configure_pll_lock_det, the variable named div becomes 4 after loop. It must less than 4 in function named FIELD_PREP(REG12_CK_DIV_MASK, div). A way to reproduce when run the following shell command make ARCH=3Darm64 CROSS_COMPILE=3Daarch64-linux-gnu- defconfig make ARCH=3Darm64 CROSS_COMPILE=3Daarch64-linux-gnu- -j4 Fixes: ("phy: freescale: fsl-samsung-hdmi: Clean up") Signed-off-by: guchongchong --- drivers/phy/freescale/phy-fsl-samsung-hdmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/phy/freescale/phy-fsl-samsung-hdmi.c b/drivers/phy/fre= escale/phy-fsl-samsung-hdmi.c index 45004f598e4d..0ad766359cbe 100644 --- a/drivers/phy/freescale/phy-fsl-samsung-hdmi.c +++ b/drivers/phy/freescale/phy-fsl-samsung-hdmi.c @@ -337,7 +337,7 @@ fsl_samsung_hdmi_phy_configure_pll_lock_det(struct fsl_= samsung_hdmi_phy *phy, /* Find int_pllclk speed */ for (div =3D 0; div < 4; div++) { int_pllclk =3D pclk / (1 << div); - if (int_pllclk < (50 * MHZ)) + if (int_pllclk < (50 * MHZ) || div =3D=3D 3) break; } =20 --=20 2.48.1