From patchwork Fri Jul 26 07:14:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Ni X-Patchwork-Id: 13742417 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 3D807225D7 for ; Fri, 26 Jul 2024 07:14:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721978077; cv=none; b=PqoMvPJ72IECfLu6R+gosCbRR0WmYkj/ewMVq9b2DJ6Fnoitz0E4mkKCMkjJOmsDcv0YMDPiv3/+CDxqyKNcm3Ly3am5ZfbrMBM3xfN49EbSxVDAVhqNXScquJUuOOABO2uW9r2uf1ZXUhwmDzQVU3K+Y3g1Gx+GwKITqveEjBk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721978077; c=relaxed/simple; bh=WBdulrMBQlmpN1KmD3HXkX31L3n9xCYEMzvlwB3JXQs=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Dmz+I4dlSf9usCFNV7Mb9D1jAB4d7Uv8WJoGX0uJbGYYfQfosThg5Eojk5AjY0pZL6EbQc0f6bvUZfgBFCIS0Wbvb70Fl8KeVzBbdjdl3b7/eF1eElNuPOBju+/ltS46hj0J/+tKU64wOWmClfb4K4oI5hZIcE59xEuZXmr8aRM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=PFxsY84F; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="PFxsY84F" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1721978074; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=cax6fCZlZEQqDOQOY2xd6Aq5ZvSyVomwdfsTuW8+2pk=; b=PFxsY84Fay0H78gptWE8Yk8Cy0ZIJ8tkhdB4L1f4wJQ0QYeJkJTy9Yj0nbrTla468eQ9Gi OL4v85BYsOEjPvtqwTXlUz0vYvO3njGP2LR4CSKd/BCzrIC6qnO71haQzQPc66J68Kyx19 Ai1S710kODmDmshyjC4uaaNjQ75A0tk= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-298-5gBICV48MfeN8q0staLDSg-1; Fri, 26 Jul 2024 03:14:26 -0400 X-MC-Unique: 5gBICV48MfeN8q0staLDSg-1 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id B45331955D4A; Fri, 26 Jul 2024 07:14:25 +0000 (UTC) Received: from localhost.localdomain (unknown [10.72.120.28]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 39A8119560AE; Fri, 26 Jul 2024 07:14:22 +0000 (UTC) From: Xiao Ni To: mariusz.tkaczyk@linux.intel.com Cc: ncroxon@redhat.com, linux-raid@vger.kernel.org Subject: [PATCH 01/14] mdadm/Grow: fix coverity issue CHECKED_RETURN Date: Fri, 26 Jul 2024 15:14:03 +0800 Message-Id: <20240726071416.36759-2-xni@redhat.com> In-Reply-To: <20240726071416.36759-1-xni@redhat.com> References: <20240726071416.36759-1-xni@redhat.com> Precedence: bulk X-Mailing-List: linux-raid@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 It needs to check return value when functions have return value. Signed-off-by: Xiao Ni --- Grow.c | 43 ++++++++++++++++++++++++++++++++++++------- 1 file changed, 36 insertions(+), 7 deletions(-) diff --git a/Grow.c b/Grow.c index b135930d05b8..7ae967bda067 100644 --- a/Grow.c +++ b/Grow.c @@ -3261,7 +3261,12 @@ static int reshape_array(char *container, int fd, char *devname, /* This is a spare that wants to * be part of the array. */ - add_disk(fd, st, info2, d); + if (add_disk(fd, st, info2, d) < 0) { + pr_err("Can not add disk %s\n", + d->sys_name); + free(info2); + goto release; + } } } sysfs_free(info2); @@ -4413,7 +4418,10 @@ static void validate(int afd, int bfd, unsigned long long offset) */ if (afd < 0) return; - lseek64(bfd, offset - 4096, 0); + if (lseek64(bfd, offset - 4096, 0) < 0) { + pr_err("lseek64 fails %d:%s\n", errno, strerror(errno)); + return; + } if (read(bfd, &bsb2, 512) != 512) fail("cannot read bsb"); if (bsb2.sb_csum != bsb_csum((char*)&bsb2, @@ -4444,12 +4452,19 @@ static void validate(int afd, int bfd, unsigned long long offset) } } - lseek64(bfd, offset, 0); + if (lseek64(bfd, offset, 0) < 0) { + pr_err("lseek64 fails %d:%s\n", errno, strerror(errno)); + goto out; + } if ((unsigned long long)read(bfd, bbuf, len) != len) { //printf("len %llu\n", len); fail("read first backup failed"); } - lseek64(afd, __le64_to_cpu(bsb2.arraystart)*512, 0); + + if (lseek64(afd, __le64_to_cpu(bsb2.arraystart)*512, 0) < 0) { + pr_err("lseek64 fails %d:%s\n", errno, strerror(errno)); + goto out; + } if ((unsigned long long)read(afd, abuf, len) != len) fail("read first from array failed"); if (memcmp(bbuf, abuf, len) != 0) @@ -4466,15 +4481,25 @@ static void validate(int afd, int bfd, unsigned long long offset) bbuf = xmalloc(abuflen); } - lseek64(bfd, offset+__le64_to_cpu(bsb2.devstart2)*512, 0); + if (lseek64(bfd, offset+__le64_to_cpu(bsb2.devstart2)*512, 0) < 0) { + pr_err("lseek64 fails %d:%s\n", errno, strerror(errno)); + goto out; + } if ((unsigned long long)read(bfd, bbuf, len) != len) fail("read second backup failed"); - lseek64(afd, __le64_to_cpu(bsb2.arraystart2)*512, 0); + if (lseek64(afd, __le64_to_cpu(bsb2.arraystart2)*512, 0) < 0) { + pr_err("lseek64 fails %d:%s\n", errno, strerror(errno)); + goto out; + } if ((unsigned long long)read(afd, abuf, len) != len) fail("read second from array failed"); if (memcmp(bbuf, abuf, len) != 0) fail("data2 compare failed"); } +out: + free(abuf); + free(bbuf); + return; } int child_monitor(int afd, struct mdinfo *sra, struct reshape *reshape, @@ -5033,7 +5058,11 @@ int Grow_continue_command(char *devname, int fd, struct context *c) goto Grow_continue_command_exit; } content = &array; - sysfs_init(content, fd, NULL); + if (sysfs_init(content, fd, NULL) < 0) { + pr_err("sysfs_init fails\n"); + ret_val = 1; + goto Grow_continue_command_exit; + } /* Need to load a superblock. * FIXME we should really get what we need from * sysfs