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dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, kbuild-all@lists.01.org, lkp@intel.com, Thomas Zimmermann Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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@intel.com/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 Reported-by: Dan Carpenter 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============6131131036360074188==" MIME-Version: 1.0 From: kernel test robot Subject: Re: [PATCH] drm/mgag200: Fail on I2C initialization errors Date: Fri, 06 May 2022 10:25:36 +0800 Message-ID: <202205061008.eYVQWRSt-lkp@intel.com> List-Id: To: kbuild@lists.01.org --===============6131131036360074188== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable CC: kbuild-all(a)lists.01.org BCC: lkp(a)intel.com In-Reply-To: <20220505152244.413-1-tzimmermann@suse.de> References: <20220505152244.413-1-tzimmermann@suse.de> TO: Thomas Zimmermann TO: airlied(a)redhat.com TO: jfalempe(a)redhat.com TO: daniel(a)ffwll.ch CC: Thomas Zimmermann CC: dri-devel(a)lists.freedesktop.org Hi Thomas, I love your patch! Perhaps something to improve: [auto build test WARNING on drm/drm-next] [also build test WARNING on drm-exynos/exynos-drm-next drm-intel/for-linux-= next drm-tip/drm-tip tegra-drm/drm/tegra/for-next v5.18-rc5 next-20220505] [cannot apply to airlied/drm-next] [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/intel-lab-lkp/linux/commits/Thomas-Zimmermann/dr= m-mgag200-Fail-on-I2C-initialization-errors/20220505-234643 base: git://anongit.freedesktop.org/drm/drm drm-next :::::: branch date: 11 hours ago :::::: commit date: 11 hours ago config: i386-randconfig-m021 (https://download.01.org/0day-ci/archive/20220= 506/202205061008.eYVQWRSt-lkp(a)intel.com/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 Reported-by: Dan Carpenter smatch warnings: drivers/gpu/drm/mgag200/mgag200_mode.c:819 mgag200_vga_connector_init() err= or: uninitialized symbol 'ret'. vim +/ret +819 drivers/gpu/drm/mgag200/mgag200_mode.c 414c453106255b1 Dave Airlie 2012-04-17 808 = 81a15b9a65565dc Thomas Zimmermann 2020-05-07 809 static int mgag200_v= ga_connector_init(struct mga_device *mdev) 414c453106255b1 Dave Airlie 2012-04-17 810 { 832eddf5d8f4d83 Thomas Zimmermann 2020-06-05 811 struct drm_device *= dev =3D &mdev->base; 81a15b9a65565dc Thomas Zimmermann 2020-05-07 812 struct mga_connecto= r *mconnector =3D &mdev->connector; 81a15b9a65565dc Thomas Zimmermann 2020-05-07 813 struct drm_connecto= r *connector =3D &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 =3D 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, "fail= ed to add DDC bus: %d\n", ret); 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 =3D drm_connect= or_init_with_ddc(dev, connector, 9572ae176a10f3b Andrzej Pietrasiewicz 2019-07-26 824 &mga_vga_conn= ector_funcs, 9572ae176a10f3b Andrzej Pietrasiewicz 2019-07-26 825 DRM_MODE_CONN= ECTOR_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_i= 2c_destroy; 414c453106255b1 Dave Airlie 2012-04-17 829 drm_connector_helpe= r_add(connector, &mga_vga_connector_helper_funcs); 414c453106255b1 Dave Airlie 2012-04-17 830 = 81a15b9a65565dc Thomas Zimmermann 2020-05-07 831 mconnector->i2c =3D= 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_dest= roy: 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 } 414c453106255b1 Dave Airlie 2012-04-17 839 = -- = 0-DAY CI Kernel Test Service https://01.org/lkp --===============6131131036360074188==-- From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============8374447857491671978==" MIME-Version: 1.0 From: Dan Carpenter To: kbuild-all@lists.01.org Subject: Re: [PATCH] drm/mgag200: Fail on I2C initialization errors Date: Fri, 06 May 2022 10:26:56 +0300 Message-ID: <202205061008.eYVQWRSt-lkp@intel.com> In-Reply-To: <20220505152244.413-1-tzimmermann@suse.de> List-Id: --===============8374447857491671978== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hi Thomas, url: https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/dr= m-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/20220= 506/202205061008.eYVQWRSt-lkp(a)intel.com/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 Reported-by: Dan Carpenter smatch warnings: drivers/gpu/drm/mgag200/mgag200_mode.c:819 mgag200_vga_connector_init() err= or: uninitialized symbol 'ret'. vim +/ret +819 drivers/gpu/drm/mgag200/mgag200_mode.c 81a15b9a65565dc Thomas Zimmermann 2020-05-07 809 static int mgag200_v= ga_connector_init(struct mga_device *mdev) 414c453106255b1 Dave Airlie 2012-04-17 810 { 832eddf5d8f4d83 Thomas Zimmermann 2020-06-05 811 struct drm_device *= dev =3D &mdev->base; 81a15b9a65565dc Thomas Zimmermann 2020-05-07 812 struct mga_connecto= r *mconnector =3D &mdev->connector; 81a15b9a65565dc Thomas Zimmermann 2020-05-07 813 struct drm_connecto= r *connector =3D &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 =3D 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, "fail= ed 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 =3D drm_connect= or_init_with_ddc(dev, connector, 9572ae176a10f3b Andrzej Pietrasiewicz 2019-07-26 824 &mga_vga_conn= ector_funcs, 9572ae176a10f3b Andrzej Pietrasiewicz 2019-07-26 825 DRM_MODE_CONN= ECTOR_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_i= 2c_destroy; 414c453106255b1 Dave Airlie 2012-04-17 829 drm_connector_helpe= r_add(connector, &mga_vga_connector_helper_funcs); 414c453106255b1 Dave Airlie 2012-04-17 830 = 81a15b9a65565dc Thomas Zimmermann 2020-05-07 831 mconnector->i2c =3D= 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_dest= roy: 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 --===============8374447857491671978==--