From patchwork Fri Dec 17 20:27:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergey Shtylyov X-Patchwork-Id: 525387 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 982EEC433FE for ; Fri, 17 Dec 2021 20:27:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234319AbhLQU1Y (ORCPT ); Fri, 17 Dec 2021 15:27:24 -0500 Received: from mxout02.lancloud.ru ([45.84.86.82]:43502 "EHLO mxout02.lancloud.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235287AbhLQU1X (ORCPT ); Fri, 17 Dec 2021 15:27:23 -0500 Received: from LanCloud DKIM-Filter: OpenDKIM Filter v2.11.0 mxout02.lancloud.ru C086A20CC598 Received: from LanCloud Received: from LanCloud Received: from LanCloud From: Sergey Shtylyov To: Ulf Hansson , CC: Neil Armstrong , Kevin Hilman , Jerome Brunet , "Martin Blumenstingl" , , Subject: [PATCH 2/2] mmc: meson-mx-sdio: add IRQ check Date: Fri, 17 Dec 2021 23:27:17 +0300 Message-ID: <20211217202717.10041-3-s.shtylyov@omp.ru> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20211217202717.10041-1-s.shtylyov@omp.ru> References: <20211217202717.10041-1-s.shtylyov@omp.ru> MIME-Version: 1.0 X-Originating-IP: [192.168.11.198] X-ClientProxiedBy: LFEXT02.lancloud.ru (fd00:f066::142) To LFEX1907.lancloud.ru (fd00:f066::207) Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org The driver neglects to check the result of platform_get_irq()'s call and blithely passes the negative error codes to devm_request_threaded_irq() (which takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding an original error code. Stop calling devm_request_threaded_irq() with the invalid IRQ #s. Fixes: ed80a13bb4c4 ("mmc: meson-mx-sdio: Add a driver for the Amlogic Meson8 and Meson8b SoC") Signed-off-by: Sergey Shtylyov Reviewed-by: Martin Blumenstingl --- drivers/mmc/host/meson-mx-sdio.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/mmc/host/meson-mx-sdio.c b/drivers/mmc/host/meson-mx-sdio.c index d4a48916bfb6..3a19a05ef55a 100644 --- a/drivers/mmc/host/meson-mx-sdio.c +++ b/drivers/mmc/host/meson-mx-sdio.c @@ -662,6 +662,11 @@ static int meson_mx_mmc_probe(struct platform_device *pdev) } irq = platform_get_irq(pdev, 0); + if (irq < 0) { + ret = irq; + goto error_free_mmc; + } + ret = devm_request_threaded_irq(host->controller_dev, irq, meson_mx_mmc_irq, meson_mx_mmc_irq_thread, IRQF_ONESHOT,