Hi Mikko, Thank you for the patch! Yet something to improve: [auto build test ERROR on tegra/for-next] [also build test ERROR on robh/for-next tegra-drm/drm/tegra/for-next v5.11-rc7 next-20210212] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Mikko-Perttunen/NVIDIA-Tegra-NVD... base: https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git for-next config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/5951327b2039bedd20ca3e7837d4cb602... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Mikko-Perttunen/NVIDIA-Tegra-NVDEC-support/20210213-181808 git checkout 5951327b2039bedd20ca3e7837d4cb6021dc9777 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/gpu/drm/tegra/nvdec.c: In function 'nvdec_init': 131 | host1x_syncpt_put(client->syncpts[0]); | ^~~~~~~~~~~~~~~~~ | host1x_syncpt_get cc1: some warnings being treated as errors vim +131 drivers/gpu/drm/tegra/nvdec.c 91 92 static int nvdec_init(struct host1x_client *client) 93 { 94 struct tegra_drm_client *drm = host1x_to_drm_client(client); 95 struct drm_device *dev = dev_get_drvdata(client->host); 96 struct tegra_drm *tegra = dev->dev_private; 97 struct nvdec *nvdec = to_vic(drm); 98 int err; 99 100 err = host1x_client_iommu_attach(client); 101 if (err < 0 && err != -ENODEV) { 102 dev_err(nvdec->dev, "failed to attach to domain: %d\n", err); 103 return err; 104 } 105 106 nvdec->channel = host1x_channel_request(client); 107 if (!nvdec->channel) { 108 err = -ENOMEM; 109 goto detach; 110 } 111 112 client->syncpts[0] = host1x_syncpt_request(client, 0); 113 if (!client->syncpts[0]) { 114 err = -ENOMEM; 115 goto free_channel; 116 } 117 118 err = tegra_drm_register_client(tegra, drm); 119 if (err < 0) 120 goto free_syncpt; 121 122 /* 123 * Inherit the DMA parameters (such as maximum segment size) from the 124 * parent host1x device. 125 */ 126 client->dev->dma_parms = client->host->dma_parms; 127 128 return 0; 129 130 free_syncpt: 132 free_channel: 133 host1x_channel_put(nvdec->channel); 134 detach: 135 host1x_client_iommu_detach(client); 136 137 return err; 138 } 139 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org