From mboxrd@z Thu Jan 1 00:00:00 1970 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 AA64CC072A2 for ; Wed, 15 Nov 2023 20:58:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344835AbjKOU6S (ORCPT ); Wed, 15 Nov 2023 15:58:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344682AbjKOU5j (ORCPT ); Wed, 15 Nov 2023 15:57:39 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2688D173B for ; Wed, 15 Nov 2023 12:57:27 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4D8B3C16ABD; Wed, 15 Nov 2023 20:48:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700081314; bh=Vb/xqebh2R6pWP3NbSXJS1XDDWyOYmqwSC/r1XO5Bts=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qr63LJtYdEjJXwNHdQ6UwdqP1qZ0fbbHERAyPVGYnxXxltM8IgWRnCjQ9vyC3BRzQ 72BeHyfXIyC++LDlnP7ItiA7XOZqZyHeWuIYE6P5tgGk0Kjs3fpH66zIWnaCFX9FOB 3/Xs7uNGO+O9wB+u1F3woHxbY1aRN+f3Y2b+Ce6w= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Zhang Shurong , Helen Koike , Mark Brown , Sasha Levin Subject: [PATCH 5.15 052/244] spi: tegra: Fix missing IRQ check in tegra_slink_probe() Date: Wed, 15 Nov 2023 15:34:04 -0500 Message-ID: <20231115203551.487933944@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115203548.387164783@linuxfoundation.org> References: <20231115203548.387164783@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Zhang Shurong [ Upstream commit eb9913b511f10968a02cfa5329a896855dd152a3 ] This func misses checking for platform_get_irq()'s call and may passes the negative error codes to request_irq(), which takes unsigned IRQ #, causing it to fail with -EINVAL, overriding an original error code. Fix this by stop calling request_irq() with invalid IRQ #s. Fixes: dc4dc3605639 ("spi: tegra: add spi driver for SLINK controller") Signed-off-by: Zhang Shurong Reviewed-by: Helen Koike Link: https://lore.kernel.org/r/tencent_73FCC06A3D1C14EE5175253C6FB46A07B709@qq.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/spi/spi-tegra20-slink.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index cf61bf302a059..c611fedda7de9 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -1087,6 +1087,8 @@ static int tegra_slink_probe(struct platform_device *pdev) reset_control_deassert(tspi->rst); spi_irq = platform_get_irq(pdev, 0); + if (spi_irq < 0) + return spi_irq; tspi->irq = spi_irq; ret = request_threaded_irq(tspi->irq, tegra_slink_isr, tegra_slink_isr_thread, IRQF_ONESHOT, -- 2.42.0