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PCI: qcom: Prevent potential error pointer dereference

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Only call dev_pm_opp_put() if dev_pm_opp_find_freq_exact() succeeds;
otherwise it leads to an error pointer dereference.

Fixes: 78b5f6f8855e ("PCI: qcom: Add OPP support to scale performance")
Link: https://lore.kernel.org/linux-pci/20240708180539.1447307-3-dan.carpenter@linaro.org
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
This commit is contained in:
Dan Carpenter 2024-07-08 13:05:37 -05:00 committed by Krzysztof Wilczyński
parent 101e5c5c4e
commit 9553636b57
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GPG Key ID: 7C64768D3DE334E7
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/controller/dwc/pcie-qcom.c
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@ -1447,8 +1447,8 @@ static void qcom_pcie_icc_opp_update(struct qcom_pcie *pcie)
if (ret)
dev_err(pci->dev, "Failed to set OPP for freq (%lu): %d\n",
freq_kbps * width, ret);
dev_pm_opp_put(opp);
}
dev_pm_opp_put(opp);
}
}