Hi Hugues, [auto build test WARNING on robh/for-next] [also build test WARNING on v4.11-rc4 next-20170329] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Hugues-Fruchet/Add-support-for-DCMI-camera-interface-of-STMicroelectronics-STM32-SoC-series/20170330-140726 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: x86_64-allmodconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/media/platform/stm32/stm32-dcmi.c: In function 'dcmi_probe': >> drivers/media/platform/stm32/stm32-dcmi.c:1386:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized] return ret; ^~~ vim +/ret +1386 drivers/media/platform/stm32/stm32-dcmi.c 1370 dev_info(&pdev->dev, "Probe done\n"); 1371 1372 platform_set_drvdata(pdev, dcmi); 1373 return 0; 1374 1375 err_reset_control_put: 1376 reset_control_put(dcmi->rstc); 1377 err_device_release: 1378 video_device_release(dcmi->vdev); 1379 err_device_unregister: 1380 v4l2_device_unregister(&dcmi->v4l2_dev); 1381 err_clk_unprepare: 1382 clk_unprepare(dcmi->mclk); 1383 err_dma_release: 1384 dma_release_channel(dcmi->dma_chan); 1385 > 1386 return ret; 1387 } 1388 1389 static int dcmi_remove(struct platform_device *pdev) 1390 { 1391 struct stm32_dcmi *dcmi = platform_get_drvdata(pdev); 1392 1393 v4l2_async_notifier_unregister(&dcmi->notifier); 1394 v4l2_device_unregister(&dcmi->v4l2_dev); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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