From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AA4381DF73C; Tue, 29 Apr 2025 17:02:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745946122; cv=none; b=ZR4k0hXWaCAplymh3fkgQQa9vmYT5mbh8ByvRQrOpJ/y1npCzCNjwXO2JP0Km1uFIw4vku/6O+5+gUM/iMcejXngiLqWlxCPPcfdKT43sQ768EnRFk1P5AyLa+pWZYvvBxi0HBBrguvbG7QfWM0HI+HbHeiKBOT7exPZ6CttAs0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745946122; c=relaxed/simple; bh=WxwJ6RO4I5fnsqOzgwzrsUZJ0vSTGwRyShSDnmrHVa4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ehPe6RjUsbLvJSOcG18GVdWaihGSqjRb1dvRmJ10CJafhbwGccM744CpEasTroeAIIPnn9s/a4cWIhsgX5hydF3BoY6vVJnoXlscShK7uhiVATCQPdvifp9FHdB0aszlmSBV0TEsZBf+OAVEncLqsEiJ75v8o5/bpB+f61vxZAg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=SwOOlX9F; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="SwOOlX9F" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2922AC4CEE3; Tue, 29 Apr 2025 17:02:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745946122; bh=WxwJ6RO4I5fnsqOzgwzrsUZJ0vSTGwRyShSDnmrHVa4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SwOOlX9FQWtKbRZORarIRn1/d0ccxFQASpgbUPtBLZf2YKyE/51a58MCtlGBSq9r5 5U2YlZtAZtkw78YN9H7i7hiPMvFnqU84h82jBLz6LZo/Q4dWB4bTNZoexSB/OWlAj8 v99K4cESpHSnz21mMO0O35OtoHgW8m4FLVeNgMD4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Fedor Pchelkin , Peter Chen Subject: [PATCH 6.14 163/311] usb: chipidea: ci_hdrc_imx: implement usb_phy_init() error handling Date: Tue, 29 Apr 2025 18:40:00 +0200 Message-ID: <20250429161127.718386757@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161121.011111832@linuxfoundation.org> References: <20250429161121.011111832@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Fedor Pchelkin commit 8c531e0a8c2d82509ad97c6d3a1e6217c7ed136d upstream. usb_phy_init() may return an error code if e.g. its implementation fails to prepare/enable some clocks. And properly rollback on probe error path by calling the counterpart usb_phy_shutdown(). Found by Linux Verification Center (linuxtesting.org). Fixes: be9cae2479f4 ("usb: chipidea: imx: Fix ULPI on imx53") Cc: stable Signed-off-by: Fedor Pchelkin Acked-by: Peter Chen Link: https://lore.kernel.org/r/20250316102658.490340-4-pchelkin@ispras.ru Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/ci_hdrc_imx.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -484,7 +484,11 @@ static int ci_hdrc_imx_probe(struct plat of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) { pdata.flags |= CI_HDRC_OVERRIDE_PHY_CONTROL; data->override_phy_control = true; - usb_phy_init(pdata.usb_phy); + ret = usb_phy_init(pdata.usb_phy); + if (ret) { + dev_err(dev, "Failed to init phy\n"); + goto err_clk; + } } if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM) @@ -493,7 +497,7 @@ static int ci_hdrc_imx_probe(struct plat ret = imx_usbmisc_init(data->usbmisc_data); if (ret) { dev_err(dev, "usbmisc init failed, ret=%d\n", ret); - goto err_clk; + goto phy_shutdown; } data->ci_pdev = ci_hdrc_add_device(dev, @@ -502,7 +506,7 @@ static int ci_hdrc_imx_probe(struct plat if (IS_ERR(data->ci_pdev)) { ret = PTR_ERR(data->ci_pdev); dev_err_probe(dev, ret, "ci_hdrc_add_device failed\n"); - goto err_clk; + goto phy_shutdown; } if (data->usbmisc_data) { @@ -536,6 +540,9 @@ static int ci_hdrc_imx_probe(struct plat disable_device: ci_hdrc_remove_device(data->ci_pdev); +phy_shutdown: + if (data->override_phy_control) + usb_phy_shutdown(data->phy); err_clk: clk_disable_unprepare(data->clk_wakeup); err_wakeup_clk: