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 61557C4707A for ; Mon, 30 May 2022 14:37:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241977AbiE3Ogf (ORCPT ); Mon, 30 May 2022 10:36:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241678AbiE3OR5 (ORCPT ); Mon, 30 May 2022 10:17:57 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 904CF7354D; Mon, 30 May 2022 06:47:55 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 6103E60FD7; Mon, 30 May 2022 13:47:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 84DFCC3411E; Mon, 30 May 2022 13:47:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1653918473; bh=JSualys+wE7HH/++xefNdthks7nl0trL8q7V5fzWJDA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lyLCGQBgnxNMEyBDvQzvNXGzUFZiXblAbg/hf+FLuXWDATxD1Ukz7xwkfmd98cKs6 lgYJu9/ai11403mKQrY4s+kbIHmso9fQjxKZ+DtB79zqHxPc3C5grB4VuAIyCZrXLM FMnpIIJx+BizoI4GKSVKoRSCvZuwj+I/uOKYAjJuL1XrwMlxwhteCBGjpnvd0C37jK n+tmsxwSkNMpqIwrfceQL4v3gQRX5DlhSc3h+k+R7M9edQia6o/ziXQ5URaQ8KSKan p8y06/RUzsts25mVycJY4lLwmTcacWmuGAv/X4yVGN4bCeCF/nNKIhHzQXzzJ+HmX0 NAF97f0tabVuA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Lv Ruyi , Zeal Robot , "Martin K . Petersen" , Sasha Levin , kashyap.desai@broadcom.com, sumit.saxena@broadcom.com, shivasharan.srikanteshwara@broadcom.com, jejb@linux.ibm.com, megaraidlinux.pdl@broadcom.com, linux-scsi@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 21/55] scsi: megaraid: Fix error check return value of register_chrdev() Date: Mon, 30 May 2022 09:46:27 -0400 Message-Id: <20220530134701.1935933-21-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220530134701.1935933-1-sashal@kernel.org> References: <20220530134701.1935933-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lv Ruyi [ Upstream commit c5acd61dbb32b6bda0f3a354108f2b8dcb788985 ] If major equals 0, register_chrdev() returns an error code when it fails. This function dynamically allocates a major and returns its number on success, so we should use "< 0" to check it instead of "!". Link: https://lore.kernel.org/r/20220418105755.2558828-1-lv.ruyi@zte.com.cn Reported-by: Zeal Robot Signed-off-by: Lv Ruyi Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/megaraid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index ff6d4aa92421..8b1ba690039b 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -4635,7 +4635,7 @@ static int __init megaraid_init(void) * major number allocation. */ major = register_chrdev(0, "megadev_legacy", &megadev_fops); - if (!major) { + if (major < 0) { printk(KERN_WARNING "megaraid: failed to register char device\n"); } -- 2.35.1