From patchwork Tue Aug 20 18:26:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Moyer X-Patchwork-Id: 13770526 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 AAF6F1990B5 for ; Tue, 20 Aug 2024 18:27:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724178436; cv=none; b=EBIpZR0/8YMTIrpctbVuVs26iHhA76DqT/9M1rP+khJ8UdZG+Rm7xjLoYuDxL+7sdh+1eDRUPkj7q8b2OQ8l8BIR+MyykT1Q1pZ5hdGSGvhpRztamuyeZLoZhnulrbAzS+mfv9+VKYM4mzruv8/labmMsyt214kz9BIRioBBsow= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724178436; c=relaxed/simple; bh=r/0VVvIh1ICVoRY8ZnDee3hXMlgEX26A6icGSipczhw=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lZ+Jrj31Zm3j/plS6Gfp2P1rIvlguj6+tPI2meySG8xajHs9HBgJ1WUUp3RZg/sXefE93QlpCwFqp8wHjZBANtBcENJxfphapZTYq5GYeaTXh7wBIyhk3iiZVazJ2IdpZZg7bEPWt3y/fCg2ISSDhRokhWc7/zkUGXC59W8xqtY= 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=Id7GJg0w; arc=none smtp.client-ip=170.10.129.124 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="Id7GJg0w" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1724178433; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=KFjd8rs2HCbyk4O3ZbMEg6FulInHI9ojnAFErBM4d08=; b=Id7GJg0wr2yTgCXpUZvla5JoX/jRGBh1zKw3YhicFNjyXvMYNRc0XNA0BfRJvrufLv4emP TTzvVEPlkhsrEvHHPzrfYHqnVYVvh4y9iTn3pN0b5OyyPhQk1tWxUSVogYdwRdOw7ihtRz fHkjLbFA88JUd384K5MPQU7eOz4uZtI= 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-459-uDG6S43QNSKnC-C4aaEp3g-1; Tue, 20 Aug 2024 14:27:12 -0400 X-MC-Unique: uDG6S43QNSKnC-C4aaEp3g-1 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (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 0C2F71955F42 for ; Tue, 20 Aug 2024 18:27:11 +0000 (UTC) Received: from segfault.usersys.redhat.com (unknown [10.22.32.128]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 7A8941955F54 for ; Tue, 20 Aug 2024 18:27:10 +0000 (UTC) Received: by segfault.usersys.redhat.com (Postfix, from userid 3734) id 371EC22B0C5A; Tue, 20 Aug 2024 14:27:08 -0400 (EDT) From: jmoyer@redhat.com To: nvdimm@lists.linux.dev Subject: [PATCH ndctl 2/2] libndctl.c: major and minor numbers are unsigned Date: Tue, 20 Aug 2024 14:26:41 -0400 Message-ID: <20240820182705.139842-3-jmoyer@redhat.com> In-Reply-To: <20240820182705.139842-1-jmoyer@redhat.com> References: <20240820182705.139842-1-jmoyer@redhat.com> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com From: Jeff Moyer Static analysis points out that the cast of bus->major and bus->minor to a signed type in the call to parent_dev_path could result in a negative number. I sincerely doubt we'll see major and minor numbers that large, but let's fix it. Signed-off-by: Jeff Moyer Reviewed-by: Dave Jiang Reviewed-by: Vishal Verma --- ndctl/lib/libndctl.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/ndctl/lib/libndctl.c b/ndctl/lib/libndctl.c index ddbdd9a..f75dbd4 100644 --- a/ndctl/lib/libndctl.c +++ b/ndctl/lib/libndctl.c @@ -710,11 +710,12 @@ NDCTL_EXPORT void ndctl_set_log_priority(struct ndctl_ctx *ctx, int priority) daxctl_set_log_priority(ctx->daxctl_ctx, priority); } -static char *__dev_path(char *type, int major, int minor, int parent) +static char *__dev_path(char *type, unsigned int major, unsigned int minor, + int parent) { char *path, *dev_path; - if (asprintf(&path, "/sys/dev/%s/%d:%d%s", type, major, minor, + if (asprintf(&path, "/sys/dev/%s/%u:%u%s", type, major, minor, parent ? "/device" : "") < 0) return NULL; @@ -723,7 +724,7 @@ static char *__dev_path(char *type, int major, int minor, int parent) return dev_path; } -static char *parent_dev_path(char *type, int major, int minor) +static char *parent_dev_path(char *type, unsigned int major, unsigned int minor) { return __dev_path(type, major, minor, 1); }