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Date: Sun, 10 Jan 2021 13:27:31 +0800 From: kernel test robot <lkp@...el.com> To: Andrey Grodzovsky <andrey.grodzovsky@....com> Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org, Alex Deucher <alexander.deucher@....com>, Luben Tuikov <luben.tuikov@....com> Subject: drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:1855:42: warning: Uninitialized variable: fw_ver tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2ff90100ace886895e4fbb2850b8d5e49d931ed6 commit: 57430471e2fa60a412e220fa3014567e792aaa6f drm/amdgpu: Add support for USBC PD FW download date: 10 months ago compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@...el.com> "cppcheck warnings: (new ones prefixed by >>)" >> drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:1855:42: warning: Uninitialized variable: fw_ver [uninitvar] return snprintf(buf, PAGE_SIZE, "%xn", fw_ver); ^ vim +1855 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c 1836 1837 static ssize_t psp_usbc_pd_fw_sysfs_read(struct device *dev, 1838 struct device_attribute *attr, 1839 char *buf) 1840 { 1841 struct drm_device *ddev = dev_get_drvdata(dev); 1842 struct amdgpu_device *adev = ddev->dev_private; 1843 uint32_t fw_ver; 1844 int ret; 1845 1846 mutex_lock(&adev->psp.mutex); 1847 ret = psp_read_usbc_pd_fw(&adev->psp, &fw_ver); 1848 mutex_unlock(&adev->psp.mutex); 1849 1850 if (ret) { 1851 DRM_ERROR("Failed to read USBC PD FW, err = %d", ret); 1852 return ret; 1853 } 1854 > 1855 return snprintf(buf, PAGE_SIZE, "%x\n", fw_ver); 1856 } 1857 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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