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Mon, 30 Jun 2025 09:13:58 -0700 (PDT) Date: Mon, 30 Jun 2025 19:13:57 +0300 From: Dan Carpenter To: oe-kbuild@lists.linux.dev, Benjamin Gaignard , joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, heiko@sntech.de, nicolas.dufresne@collabora.com, jgg@ziepe.ca Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev, iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, kernel@collabora.com, Benjamin Gaignard Subject: Re: [PATCH v4 3/5] iommu: Add verisilicon IOMMU driver Message-ID: <9d247bec-d206-495e-b8d6-23a7c3cc0882@suswa.mountain> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250623153931.158765-4-benjamin.gaignard@collabora.com> Hi Benjamin, kernel test robot noticed the following build warnings: https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Benjamin-Gaignard/dt-bindings-vendor-prefixes-Add-Verisilicon/20250623-234734 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20250623153931.158765-4-benjamin.gaignard%40collabora.com patch subject: [PATCH v4 3/5] iommu: Add verisilicon IOMMU driver config: alpha-randconfig-r073-20250627 (https://download.01.org/0day-ci/archive/20250629/202506290711.T0HOr5wS-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 8.5.0 If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202506290711.T0HOr5wS-lkp@intel.com/ smatch warnings: drivers/iommu/vsi-iommu.c:657 vsi_iommu_probe() error: uninitialized symbol 'err'. vim +/err +657 drivers/iommu/vsi-iommu.c 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 639 static int vsi_iommu_probe(struct platform_device *pdev) 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 640 { 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 641 struct device *dev = &pdev->dev; 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 642 struct vsi_iommu *iommu; 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 643 int err; 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 644 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 645 iommu = devm_kzalloc(dev, sizeof(*iommu), GFP_KERNEL); 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 646 if (!iommu) 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 647 return -ENOMEM; 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 648 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 649 iommu->dev = dev; 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 650 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 651 iommu->regs = devm_platform_ioremap_resource(pdev, 0); 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 652 if (IS_ERR(iommu->regs)) 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 653 return -ENOMEM; 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 654 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 655 iommu->num_clocks = devm_clk_bulk_get_all(dev, &iommu->clocks); 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 656 if (iommu->num_clocks < 0) 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 @657 return err; s/err/iommu->num_clocks/ 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 658 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 659 err = clk_bulk_prepare(iommu->num_clocks, iommu->clocks); 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 660 if (err) 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 661 return err; 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 662 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 663 iommu->irq = platform_get_irq(pdev, 0); 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 664 if (iommu->irq < 0) 15ea72d5401fb7 Benjamin Gaignard 2025-06-23 665 return iommu->irq; -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki