From patchwork Mon Jun 1 05:47:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vignesh Raghavendra X-Patchwork-Id: 11581283 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 333DB92A for ; Mon, 1 Jun 2020 05:48:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 08B6F207D0 for ; Mon, 1 Jun 2020 05:48:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="i1xwZmEE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725831AbgFAFsF (ORCPT ); Mon, 1 Jun 2020 01:48:05 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:54568 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726165AbgFAFsF (ORCPT ); Mon, 1 Jun 2020 01:48:05 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 0515llJ7120995; Mon, 1 Jun 2020 00:47:47 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1590990467; bh=XKq9ClnXCw1KLxHij60WjAdL1ZT3KBzmHIfpMZe4qhY=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=i1xwZmEEXYPBD/vNQ0Qu7GJwFgw1UjxJiUklePxOPGuWugVGQ73j17feJx6ytQY5E SQc68hA2LzNNnKcAxpdPBM/YYzgU19fh+7aKvRxGM4s5lLFfGXnsXD/KXjKJ+2TPii mqpxrgqeuyiAJsTqvilhPabdi8XPxwlqq8c35tmA= Received: from DFLE109.ent.ti.com (dfle109.ent.ti.com [10.64.6.30]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 0515llSX079006 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 1 Jun 2020 00:47:47 -0500 Received: from DFLE114.ent.ti.com (10.64.6.35) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Mon, 1 Jun 2020 00:47:47 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Mon, 1 Jun 2020 00:47:47 -0500 Received: from ula0132425.ent.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 0515lRPk038289; Mon, 1 Jun 2020 00:47:44 -0500 From: Vignesh Raghavendra To: Tudor Ambarus , Mark Brown CC: Vignesh Raghavendra , Boris Brezillon , Ramuthevar Vadivel Murugan , , , , , , Subject: [PATCH v3 4/8] mtd: spi-nor: cadence-quadspi: Fix error path on failure to acquire reset lines Date: Mon, 1 Jun 2020 11:17:21 +0530 Message-ID: <20200601054725.2060-5-vigneshr@ti.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200601054725.2060-1-vigneshr@ti.com> References: <20200601054725.2060-1-vigneshr@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Make sure to undo the prior changes done by the driver when exiting due to failure to acquire reset lines. Signed-off-by: Vignesh Raghavendra Reviewed-by: Tudor Ambarus --- drivers/mtd/spi-nor/controllers/cadence-quadspi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/spi-nor/controllers/cadence-quadspi.c b/drivers/mtd/spi-nor/controllers/cadence-quadspi.c index 379e22c11c87..608ca657ff7f 100644 --- a/drivers/mtd/spi-nor/controllers/cadence-quadspi.c +++ b/drivers/mtd/spi-nor/controllers/cadence-quadspi.c @@ -1359,13 +1359,13 @@ static int cqspi_probe(struct platform_device *pdev) rstc = devm_reset_control_get_optional_exclusive(dev, "qspi"); if (IS_ERR(rstc)) { dev_err(dev, "Cannot get QSPI reset.\n"); - return PTR_ERR(rstc); + goto probe_reset_failed; } rstc_ocp = devm_reset_control_get_optional_exclusive(dev, "qspi-ocp"); if (IS_ERR(rstc_ocp)) { dev_err(dev, "Cannot get QSPI OCP reset.\n"); - return PTR_ERR(rstc_ocp); + goto probe_reset_failed; } reset_control_assert(rstc); @@ -1384,7 +1384,7 @@ static int cqspi_probe(struct platform_device *pdev) pdev->name, cqspi); if (ret) { dev_err(dev, "Cannot request IRQ.\n"); - goto probe_irq_failed; + goto probe_reset_failed; } cqspi_wait_idle(cqspi); @@ -1401,7 +1401,7 @@ static int cqspi_probe(struct platform_device *pdev) return ret; probe_setup_failed: cqspi_controller_enable(cqspi, 0); -probe_irq_failed: +probe_reset_failed: clk_disable_unprepare(cqspi->clk); probe_clk_failed: pm_runtime_put_sync(dev);