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Wed, 18 Feb 2026 22:52:17 -0800 (PST) Received: from localhost ([196.207.164.177]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43796acf5b9sm45905510f8f.34.2026.02.18.22.52.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Feb 2026 22:52:17 -0800 (PST) Date: Thu, 19 Feb 2026 09:52:14 +0300 From: Dan Carpenter To: oe-kbuild@lists.linux.dev, Harry Austen , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michal Simek Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev, Shubhrajyoti Datta , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Harry Austen Subject: Re: [PATCH v4 2/2] clk: clocking-wizard: add user clock monitor support Message-ID: <202602151704.qepyfVlc-lkp@intel.com> 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: <20260214180933.42143-3-hpausten@protonmail.com> Hi Harry, kernel test robot noticed the following build warnings: url: https://github.com/intel-lab-lkp/linux/commits/Harry-Austen/dt-bindings-clock-xilinx-add-description-of-user-monitor-interrupt/20260215-021554 base: ea7282e99ead6d2a294cef40acd2a29ada3ab71d patch link: https://lore.kernel.org/r/20260214180933.42143-3-hpausten%40protonmail.com patch subject: [PATCH v4 2/2] clk: clocking-wizard: add user clock monitor support config: microblaze-randconfig-r072-20260215 (https://download.01.org/0day-ci/archive/20260215/202602151704.qepyfVlc-lkp@intel.com/config) compiler: microblaze-linux-gcc (GCC) 14.3.0 smatch version: v0.5.0-8994-gd50c5a4c 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/202602151704.qepyfVlc-lkp@intel.com/ smatch warnings: drivers/clk/xilinx/clk-xlnx-clock-wizard.c:1183 clk_wzrd_user_mon_work() error: dereferencing freed memory 'dump' (line 1182) vim +/dump +1183 drivers/clk/xilinx/clk-xlnx-clock-wizard.c 68614f228e6cbe Harry Austen 2026-02-14 1176 static void clk_wzrd_user_mon_work(struct work_struct *work) 68614f228e6cbe Harry Austen 2026-02-14 1177 { 68614f228e6cbe Harry Austen 2026-02-14 1178 struct clk_wzrd *clk_wzrd = container_of(work, struct clk_wzrd, work.work); 68614f228e6cbe Harry Austen 2026-02-14 1179 u32 *dump = vmalloc(WZRD_NUM_DUMP_REGS * sizeof(*dump)); 68614f228e6cbe Harry Austen 2026-02-14 1180 68614f228e6cbe Harry Austen 2026-02-14 1181 ioread32_rep(clk_wzrd->base, dump, WZRD_NUM_DUMP_REGS); 68614f228e6cbe Harry Austen 2026-02-14 @1182 dev_coredumpv(&clk_wzrd->pdev->dev, dump, WZRD_NUM_DUMP_REGS * sizeof(*dump), GFP_KERNEL); 68614f228e6cbe Harry Austen 2026-02-14 @1183 iowrite32(dump[WZRD_INTR_STATUS / sizeof(*dump)], clk_wzrd->base + WZRD_INTR_STATUS); ^^^^ dev_coredumpv() can free dump. 68614f228e6cbe Harry Austen 2026-02-14 1184 } 68614f228e6cbe Harry Austen 2026-02-14 1185 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki