From patchwork Fri Jul 26 07:14:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Ni X-Patchwork-Id: 13742425 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 17E0E176ABB for ; Fri, 26 Jul 2024 07:14:56 +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=1721978098; cv=none; b=nnDHx3+Cixpn9WP4pCk50r1Ykh6kqvla66oiuzWHPXxMlVQzw0jOL5AMdYBc1Ll5FpecEHoVmz6+hctUuoUb+uGTPFYIuGXhFsxbybVgizeoNFzDafV/fxYItBNtv3iQKEPAmZ5Zhk/5agNox0bnLXqEFNT6qZt9BVJjKmwK13w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721978098; c=relaxed/simple; bh=Kxrb6KqAYDg1yd7xOWiuUwWg6DUJHLgBcoiY+IrYlkU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=tUFAPRpFVjMFSurn9iwjApI7QZ67sxYGzlaLuAVC2AYoeFNxGipYMoTG7QTOkX83fN50Eg9D1+uWiRYXhmlEIraCjljejLoH2JgHVsYbv7PLXa/0OsDr2TBVS8oUWC2u9jm4qWEg2wOcujqnif/klvpbOca2lzm1yKFLoVIqtws= 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=Y7V2cx04; 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="Y7V2cx04" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1721978096; 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=cct98WuoLJcrROJAxKUTywOAdEjh6LOS/q6Vou7MqOk=; b=Y7V2cx04s807TUYjVnJVMOTrgyuNZFNHOABmkpIFA0TFs+p6D52kawBEKuv9K7wqXdX763 FzRKn7EgeTJpA69SsYyMYJyyQ/hYFuvhAEtl9jz9ymRLfv8JU5wzmjOxaauJe+9/9EDaSk aKdoMKTYIMN41X9DKRtvrHi6cpWpGw8= Received: from mx-prod-mc-04.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-26-R4_AD3WrPDmog2KZhnOb6A-1; Fri, 26 Jul 2024 03:14:54 -0400 X-MC-Unique: R4_AD3WrPDmog2KZhnOb6A-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-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 22E4A19560B0; Fri, 26 Jul 2024 07:14:53 +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 A9A2419560AE; Fri, 26 Jul 2024 07:14:50 +0000 (UTC) From: Xiao Ni To: mariusz.tkaczyk@linux.intel.com Cc: ncroxon@redhat.com, linux-raid@vger.kernel.org Subject: [PATCH 09/14] mdadm/mdstat: fix coverity issue CHECKED_RETURN Date: Fri, 26 Jul 2024 15:14:11 +0800 Message-Id: <20240726071416.36759-10-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 values when functions return value. Signed-off-by: Xiao Ni --- mdstat.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/mdstat.c b/mdstat.c index e233f094c480..930d59ee2325 100644 --- a/mdstat.c +++ b/mdstat.c @@ -146,8 +146,11 @@ struct mdstat_ent *mdstat_read(int hold, int start) f = fopen("/proc/mdstat", "r"); if (f == NULL) return NULL; - else - fcntl(fileno(f), F_SETFD, FD_CLOEXEC); + + if (fcntl(fileno(f), F_SETFD, FD_CLOEXEC) < 0) { + fclose(f); + return NULL; + } all = NULL; end = &all; @@ -281,7 +284,10 @@ struct mdstat_ent *mdstat_read(int hold, int start) } if (hold && mdstat_fd == -1) { mdstat_fd = dup(fileno(f)); - fcntl(mdstat_fd, F_SETFD, FD_CLOEXEC); + if (fcntl(mdstat_fd, F_SETFD, FD_CLOEXEC) < 0) { + fclose(f); + return NULL; + } } fclose(f);