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[188.141.5.72]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-482e28f6917sm782658f8f.35.2026.08.25.15.57.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Aug 2026 15:57:35 -0700 (PDT) From: David Carlier To: vkoul@kernel.org Cc: neil.armstrong@linaro.org, qiang.yu@oss.qualcomm.com, mani@kernel.org, konrad.dybcio@oss.qualcomm.com, krishna.chundru@oss.qualcomm.com, linux-phy@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, David Carlier Subject: [PATCH 2/2] phy: qcom: qmp-pcie: Check clock-output-names count in the multi-PHY driver Date: Tue, 25 Aug 2026 23:57:29 +0100 Message-ID: <20260825225729.230493-2-devnexen@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260825225729.230493-1-devnexen@gmail.com> References: <20260825225729.230493-1-devnexen@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit of_property_count_strings() returns a negative errno when the property is missing or malformed. The value was passed straight to devm_kcalloc(), whose overflow check rejected it, turning a device tree problem into a bogus -ENOMEM with no diagnostic. Fixes: 1781be3c8a5d ("phy: qcom: qmp-pcie: Add QMP PCIe Multi-PHY driver") Signed-off-by: David Carlier --- drivers/phy/qualcomm/phy-qcom-qmp-pcie-multiphy.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-multiphy.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-multiphy.c index e93cba4369fb..e747ff9c3e5d 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-multiphy.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-multiphy.c @@ -555,6 +555,9 @@ static int qmp_pcie_multiphy_register_clocks(struct device *dev, int i, ret; num_pipe_outputs = of_property_count_strings(np, "clock-output-names"); + if (num_pipe_outputs < 0) + return dev_err_probe(dev, num_pipe_outputs, + "failed to read clock-output-names\n"); qmp_data->num_pipe_outputs = num_pipe_outputs; qmp_data->pipe_out_clks = devm_kcalloc(dev, num_pipe_outputs, -- 2.55.0