Hi Thomas, url: https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/drm-mgag200-Fail-on-I2C-initialization-errors/20220505-234643 base: git://anongit.freedesktop.org/drm/drm drm-next config: i386-randconfig-m021 (https://download.01.org/0day-ci/archive/20220506/202205061008.eYVQWRSt-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.2.0-20) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> smatch warnings: drivers/gpu/drm/mgag200/mgag200_mode.c:819 mgag200_vga_connector_init() error: uninitialized symbol 'ret'. vim +/ret +819 drivers/gpu/drm/mgag200/mgag200_mode.c 81a15b9a65565dc Thomas Zimmermann 2020-05-07 809 static int mgag200_vga_connector_init(struct mga_device *mdev) 414c453106255b1 Dave Airlie 2012-04-17 810 { 832eddf5d8f4d83 Thomas Zimmermann 2020-06-05 811 struct drm_device *dev = &mdev->base; 81a15b9a65565dc Thomas Zimmermann 2020-05-07 812 struct mga_connector *mconnector = &mdev->connector; 81a15b9a65565dc Thomas Zimmermann 2020-05-07 813 struct drm_connector *connector = &mconnector->base; 81a15b9a65565dc Thomas Zimmermann 2020-05-07 814 struct mga_i2c_chan *i2c; 81a15b9a65565dc Thomas Zimmermann 2020-05-07 815 int ret; 414c453106255b1 Dave Airlie 2012-04-17 816 81a15b9a65565dc Thomas Zimmermann 2020-05-07 817 i2c = mgag200_i2c_create(dev); 11682b9fc557a02 Thomas Zimmermann 2022-05-05 818 if (IS_ERR(i2c)) { 11682b9fc557a02 Thomas Zimmermann 2022-05-05 @819 drm_err(dev, "failed to add DDC bus: %d\n", ret); ^^^ Uninitialized 11682b9fc557a02 Thomas Zimmermann 2022-05-05 820 return PTR_ERR(i2c); 11682b9fc557a02 Thomas Zimmermann 2022-05-05 821 } 414c453106255b1 Dave Airlie 2012-04-17 822 81a15b9a65565dc Thomas Zimmermann 2020-05-07 823 ret = drm_connector_init_with_ddc(dev, connector, 9572ae176a10f3b Andrzej Pietrasiewicz 2019-07-26 824 &mga_vga_connector_funcs, 9572ae176a10f3b Andrzej Pietrasiewicz 2019-07-26 825 DRM_MODE_CONNECTOR_VGA, 81a15b9a65565dc Thomas Zimmermann 2020-05-07 826 &i2c->adapter); 81a15b9a65565dc Thomas Zimmermann 2020-05-07 827 if (ret) 81a15b9a65565dc Thomas Zimmermann 2020-05-07 828 goto err_mgag200_i2c_destroy; 414c453106255b1 Dave Airlie 2012-04-17 829 drm_connector_helper_add(connector, &mga_vga_connector_helper_funcs); 414c453106255b1 Dave Airlie 2012-04-17 830 81a15b9a65565dc Thomas Zimmermann 2020-05-07 831 mconnector->i2c = i2c; 3d5a1c5e300483d Egbert Eich 2013-07-17 832 81a15b9a65565dc Thomas Zimmermann 2020-05-07 833 return 0; 81a15b9a65565dc Thomas Zimmermann 2020-05-07 834 81a15b9a65565dc Thomas Zimmermann 2020-05-07 835 err_mgag200_i2c_destroy: 81a15b9a65565dc Thomas Zimmermann 2020-05-07 836 mgag200_i2c_destroy(i2c); 81a15b9a65565dc Thomas Zimmermann 2020-05-07 837 return ret; 414c453106255b1 Dave Airlie 2012-04-17 838 } -- 0-DAY CI Kernel Test Service https://01.org/lkp
