From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B3C5E35CB87; Tue, 16 Jun 2026 17:15:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781630147; cv=none; b=pfuNI/tQWy4jIv/4eNUCObJqHn9Cd/dlk2ejv870mt8d95GZiLj5ffthgoPFIEJfyh3hxK8EAKyzy44ubxCMOgW0A4spkAR1ac6dez9NaGBTsu8MFAl5bXMiXdFh/Zw5hWidiRvaZxTkDUW96+WMaORVdc1Io8yHaQDMqOQgNZY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781630147; c=relaxed/simple; bh=k5pvRq4waWK6u5Y4rL9ndd6XmNe3cDyvvUnvtH39CRo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=i6QoyVqfJAj+NYuVKSriaEPNG4NHfXXyZlTGcqAm0JpySSQxxcpkFxPnhXCJ3FnMv3dmcEHIrzg4Mg+wwroxaQYaLcJhqTd8M4dV0BHptl6RYbPx5l24vMgh4jSrhfqPl/6lQDBR76++yHBqsoDr/NJX3sb1L9Em6rxB2wAnxjc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=BY8lFSWW; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="BY8lFSWW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF2111F000E9; Tue, 16 Jun 2026 17:15:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1781630146; bh=K/d7gg1919HD0azZ9eonI/0hYq3RN0vwAOiLDeFkuRM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=BY8lFSWWsydZ9TeqNJgMCRR4HWa8mKHDyPBl9FJt0N7nPQIX1aivRBMb45yaCqrAO lMm3655pfFeT8UTygcXJBjiJivs5YaZtb6EkjGplCh+Ud9Hg1KT7IurgtZjSaDsLNg cgNL8MPiEPhQUI7UQFwfT3TMIr559RRxEU+dpQKI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thinh Nguyen , Radhey Shyam Pandey , Sasha Levin Subject: [PATCH 6.6 420/452] usb: dwc3: xilinx: fix error handling in zynqmp init error paths Date: Tue, 16 Jun 2026 20:30:47 +0530 Message-ID: <20260616145138.819049052@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260616145117.796205997@linuxfoundation.org> References: <20260616145117.796205997@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Radhey Shyam Pandey [ Upstream commit c1a0ecbf32c4b397353204e2ec94c5bb9f3300ed ] Fix error handling and resource cleanup i.e remove invalid phy_exit() after failed phy_init(), route failures through proper cleanup paths and return 0 explicitly on success. Fixes: 84770f028fab ("usb: dwc3: Add driver for Xilinx platforms") Cc: stable@vger.kernel.org Acked-by: Thinh Nguyen Signed-off-by: Radhey Shyam Pandey Link: https://patch.msgid.link/20260519115529.2980421-1-radhey.shyam.pandey@amd.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/dwc3-xilinx.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) --- a/drivers/usb/dwc3/dwc3-xilinx.c +++ b/drivers/usb/dwc3/dwc3-xilinx.c @@ -170,15 +170,13 @@ static int dwc3_xlnx_init_zynqmp(struct } ret = phy_init(priv_data->usb3_phy); - if (ret < 0) { - phy_exit(priv_data->usb3_phy); + if (ret < 0) goto err; - } ret = reset_control_deassert(apbrst); if (ret < 0) { dev_err(dev, "Failed to release APB reset\n"); - goto err; + goto err_phy_exit; } /* Set PIPE Power Present signal in FPD Power Present Register*/ @@ -190,27 +188,25 @@ static int dwc3_xlnx_init_zynqmp(struct ret = reset_control_deassert(crst); if (ret < 0) { dev_err(dev, "Failed to release core reset\n"); - goto err; + goto err_phy_exit; } ret = reset_control_deassert(hibrst); if (ret < 0) { dev_err(dev, "Failed to release hibernation reset\n"); - goto err; + goto err_phy_exit; } ret = phy_power_on(priv_data->usb3_phy); - if (ret < 0) { - phy_exit(priv_data->usb3_phy); - goto err; - } + if (ret < 0) + goto err_phy_exit; skip_usb3_phy: /* ulpi reset via gpio-modepin or gpio-framework driver */ reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(reset_gpio)) { - return dev_err_probe(dev, PTR_ERR(reset_gpio), - "Failed to request reset GPIO\n"); + ret = PTR_ERR(reset_gpio); + goto err_phy_power_off; } if (reset_gpio) { @@ -230,6 +226,12 @@ skip_usb3_phy: writel(reg, priv_data->regs + XLNX_USB_TRAFFIC_ROUTE_CONFIG); } + return 0; + +err_phy_power_off: + phy_power_off(priv_data->usb3_phy); +err_phy_exit: + phy_exit(priv_data->usb3_phy); err: return ret; }