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X-CSE-ConnectionGUID: KuVdCIDQTViIZwXEaQxsnQ== X-CSE-MsgGUID: Rkl4Bu5gTe6Hb2QInscdHQ== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="40089135" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="40089135" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Oct 2024 07:26:09 -0700 X-CSE-ConnectionGUID: TMvoOsJgTCSKxMebMD47Cw== X-CSE-MsgGUID: XL7776tTTyaftcyVJfrtQg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,232,1725346800"; d="scan'208";a="80523629" Received: from lkp-server01.sh.intel.com (HELO a48cf1aa22e8) ([10.239.97.150]) by fmviesa006.fm.intel.com with ESMTP; 25 Oct 2024 07:26:07 -0700 Received: from kbuild by a48cf1aa22e8 with local (Exim 4.96) (envelope-from ) id 1t4LGP-000YLw-1w; Fri, 25 Oct 2024 14:26:05 +0000 Date: Fri, 25 Oct 2024 22:25:17 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: Re: [PATCH 3/3] drm/panel: add Fitipower EK79007AD3 panel driver Message-ID: <202410252201.QglvauIC-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev In-Reply-To: <20241023124411.1153552-3-r.czerwinski@pengutronix.de> References: <20241023124411.1153552-3-r.czerwinski@pengutronix.de> TO: Rouven Czerwinski TO: Jessica Zhang TO: Sam Ravnborg TO: linux-kernel@vger.kernel.org TO: dri-devel@lists.freedesktop.org CC: kernel@pengutronix.de CC: Rouven Czerwinski CC: Neil Armstrong CC: Maarten Lankhorst CC: Maxime Ripard CC: Thomas Zimmermann CC: David Airlie CC: Daniel Vetter Hi Rouven, kernel test robot noticed the following build warnings: [auto build test WARNING on c2ee9f594da826bea183ed14f2cc029c719bf4da] url: https://github.com/intel-lab-lkp/linux/commits/Rouven-Czerwinski/dt-bindings-display-panel-add-YAML-schema-for-LXD-M9189A/20241023-204826 base: c2ee9f594da826bea183ed14f2cc029c719bf4da patch link: https://lore.kernel.org/r/20241023124411.1153552-3-r.czerwinski%40pengutronix.de patch subject: [PATCH 3/3] drm/panel: add Fitipower EK79007AD3 panel driver :::::: branch date: 2 days ago :::::: commit date: 2 days ago config: nios2-randconfig-r072-20241025 (https://download.01.org/0day-ci/archive/20241025/202410252201.QglvauIC-lkp@intel.com/config) compiler: nios2-linux-gcc (GCC) 14.1.0 If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202410252201.QglvauIC-lkp@intel.com/ smatch warnings: drivers/gpu/drm/panel/panel-lxd-m9189a.c:193 ek79007ad3_probe() error: uninitialized symbol 'ret'. vim +/ret +193 drivers/gpu/drm/panel/panel-lxd-m9189a.c a69b961abc36b3 Rouven Czerwinski 2024-10-23 180 a69b961abc36b3 Rouven Czerwinski 2024-10-23 181 static int ek79007ad3_probe(struct mipi_dsi_device *dsi) a69b961abc36b3 Rouven Czerwinski 2024-10-23 182 { a69b961abc36b3 Rouven Czerwinski 2024-10-23 183 struct device *dev = &dsi->dev; a69b961abc36b3 Rouven Czerwinski 2024-10-23 184 struct ek79007ad3_panel *ctx; a69b961abc36b3 Rouven Czerwinski 2024-10-23 185 int ret; a69b961abc36b3 Rouven Czerwinski 2024-10-23 186 a69b961abc36b3 Rouven Czerwinski 2024-10-23 187 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); a69b961abc36b3 Rouven Czerwinski 2024-10-23 188 if (!ctx) a69b961abc36b3 Rouven Czerwinski 2024-10-23 189 return -ENOMEM; a69b961abc36b3 Rouven Czerwinski 2024-10-23 190 a69b961abc36b3 Rouven Czerwinski 2024-10-23 191 ctx->supply = devm_regulator_get(dev, "vdd"); a69b961abc36b3 Rouven Czerwinski 2024-10-23 192 if (IS_ERR(ctx->supply)) a69b961abc36b3 Rouven Czerwinski 2024-10-23 @193 return dev_err_probe(dev, ret, "Failed to get regulator\n"); a69b961abc36b3 Rouven Czerwinski 2024-10-23 194 a69b961abc36b3 Rouven Czerwinski 2024-10-23 195 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); a69b961abc36b3 Rouven Czerwinski 2024-10-23 196 if (IS_ERR(ctx->reset_gpio)) a69b961abc36b3 Rouven Czerwinski 2024-10-23 197 return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), a69b961abc36b3 Rouven Czerwinski 2024-10-23 198 "Failed to get reset-gpios\n"); a69b961abc36b3 Rouven Czerwinski 2024-10-23 199 a69b961abc36b3 Rouven Czerwinski 2024-10-23 200 ctx->standby_gpio = devm_gpiod_get(dev, "standby", GPIOD_OUT_LOW); a69b961abc36b3 Rouven Czerwinski 2024-10-23 201 if (IS_ERR(ctx->standby_gpio)) a69b961abc36b3 Rouven Czerwinski 2024-10-23 202 return dev_err_probe(dev, PTR_ERR(ctx->standby_gpio), a69b961abc36b3 Rouven Czerwinski 2024-10-23 203 "Failed to get standby-gpios\n"); a69b961abc36b3 Rouven Czerwinski 2024-10-23 204 a69b961abc36b3 Rouven Czerwinski 2024-10-23 205 ctx->dsi = dsi; a69b961abc36b3 Rouven Czerwinski 2024-10-23 206 mipi_dsi_set_drvdata(dsi, ctx); a69b961abc36b3 Rouven Czerwinski 2024-10-23 207 a69b961abc36b3 Rouven Czerwinski 2024-10-23 208 dsi->lanes = 4; a69b961abc36b3 Rouven Czerwinski 2024-10-23 209 dsi->format = MIPI_DSI_FMT_RGB888; a69b961abc36b3 Rouven Czerwinski 2024-10-23 210 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST; a69b961abc36b3 Rouven Czerwinski 2024-10-23 211 a69b961abc36b3 Rouven Czerwinski 2024-10-23 212 drm_panel_init(&ctx->panel, dev, &ek79007ad3_panel_funcs, a69b961abc36b3 Rouven Czerwinski 2024-10-23 213 DRM_MODE_CONNECTOR_DSI); a69b961abc36b3 Rouven Czerwinski 2024-10-23 214 ctx->panel.prepare_prev_first = true; a69b961abc36b3 Rouven Czerwinski 2024-10-23 215 a69b961abc36b3 Rouven Czerwinski 2024-10-23 216 ret = drm_panel_of_backlight(&ctx->panel); a69b961abc36b3 Rouven Czerwinski 2024-10-23 217 if (ret) a69b961abc36b3 Rouven Czerwinski 2024-10-23 218 return dev_err_probe(dev, ret, "Failed to get backlight\n"); a69b961abc36b3 Rouven Czerwinski 2024-10-23 219 a69b961abc36b3 Rouven Czerwinski 2024-10-23 220 drm_panel_add(&ctx->panel); a69b961abc36b3 Rouven Czerwinski 2024-10-23 221 a69b961abc36b3 Rouven Czerwinski 2024-10-23 222 ret = mipi_dsi_attach(dsi); a69b961abc36b3 Rouven Czerwinski 2024-10-23 223 if (ret < 0) { a69b961abc36b3 Rouven Czerwinski 2024-10-23 224 dev_err_probe(dev, ret, "Failed to attach to DSI host\n"); a69b961abc36b3 Rouven Czerwinski 2024-10-23 225 drm_panel_remove(&ctx->panel); a69b961abc36b3 Rouven Czerwinski 2024-10-23 226 return ret; a69b961abc36b3 Rouven Czerwinski 2024-10-23 227 } a69b961abc36b3 Rouven Czerwinski 2024-10-23 228 a69b961abc36b3 Rouven Czerwinski 2024-10-23 229 return 0; a69b961abc36b3 Rouven Czerwinski 2024-10-23 230 } a69b961abc36b3 Rouven Czerwinski 2024-10-23 231 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki