From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261998AbVFUELE (ORCPT ); Tue, 21 Jun 2005 00:11:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261915AbVFUCrS (ORCPT ); Mon, 20 Jun 2005 22:47:18 -0400 Received: from mail.kroah.org ([69.55.234.183]:21476 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S261679AbVFTW7m convert rfc822-to-8bit (ORCPT ); Mon, 20 Jun 2005 18:59:42 -0400 Cc: dtor_core@ameritech.net Subject: [PATCH] sysfs: (driver/block) if show/store is missing return -EIO In-Reply-To: <111930836153@kroah.com> X-Mailer: gregkh_patchbomb Date: Mon, 20 Jun 2005 15:59:21 -0700 Message-Id: <11193083611124@kroah.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Reply-To: Greg K-H To: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 7BIT From: Greg KH Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org [PATCH] sysfs: (driver/block) if show/store is missing return -EIO sysfs: fix drivers/block so if an attribute doesn't implement show or store method read/write will return -EIO instead of 0 or -EINVAL. Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- commit 6c1852a08e444a2e66367352a99c0e93c8bf3e97 tree ffa075f75b7eb0e5b1399aeb8e34e6cf9a631a10 parent fc7e4828995d8c9e4c9597f8a19179e4ab53f73e author Dmitry Torokhov Fri, 29 Apr 2005 01:26:06 -0500 committer Greg Kroah-Hartman Mon, 20 Jun 2005 15:15:03 -0700 drivers/block/as-iosched.c | 4 ++-- drivers/block/cfq-iosched.c | 4 ++-- drivers/block/deadline-iosched.c | 4 ++-- drivers/block/genhd.c | 2 +- drivers/block/ll_rw_blk.c | 4 ++-- 5 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/block/as-iosched.c b/drivers/block/as-iosched.c --- a/drivers/block/as-iosched.c +++ b/drivers/block/as-iosched.c @@ -2044,7 +2044,7 @@ as_attr_show(struct kobject *kobj, struc struct as_fs_entry *entry = to_as(attr); if (!entry->show) - return 0; + return -EIO; return entry->show(e->elevator_data, page); } @@ -2057,7 +2057,7 @@ as_attr_store(struct kobject *kobj, stru struct as_fs_entry *entry = to_as(attr); if (!entry->store) - return -EINVAL; + return -EIO; return entry->store(e->elevator_data, page, length); } diff --git a/drivers/block/cfq-iosched.c b/drivers/block/cfq-iosched.c --- a/drivers/block/cfq-iosched.c +++ b/drivers/block/cfq-iosched.c @@ -1775,7 +1775,7 @@ cfq_attr_show(struct kobject *kobj, stru struct cfq_fs_entry *entry = to_cfq(attr); if (!entry->show) - return 0; + return -EIO; return entry->show(e->elevator_data, page); } @@ -1788,7 +1788,7 @@ cfq_attr_store(struct kobject *kobj, str struct cfq_fs_entry *entry = to_cfq(attr); if (!entry->store) - return -EINVAL; + return -EIO; return entry->store(e->elevator_data, page, length); } diff --git a/drivers/block/deadline-iosched.c b/drivers/block/deadline-iosched.c --- a/drivers/block/deadline-iosched.c +++ b/drivers/block/deadline-iosched.c @@ -886,7 +886,7 @@ deadline_attr_show(struct kobject *kobj, struct deadline_fs_entry *entry = to_deadline(attr); if (!entry->show) - return 0; + return -EIO; return entry->show(e->elevator_data, page); } @@ -899,7 +899,7 @@ deadline_attr_store(struct kobject *kobj struct deadline_fs_entry *entry = to_deadline(attr); if (!entry->store) - return -EINVAL; + return -EIO; return entry->store(e->elevator_data, page, length); } diff --git a/drivers/block/genhd.c b/drivers/block/genhd.c --- a/drivers/block/genhd.c +++ b/drivers/block/genhd.c @@ -322,7 +322,7 @@ static ssize_t disk_attr_show(struct kob struct gendisk *disk = to_disk(kobj); struct disk_attribute *disk_attr = container_of(attr,struct disk_attribute,attr); - ssize_t ret = 0; + ssize_t ret = -EIO; if (disk_attr->show) ret = disk_attr->show(disk,page); diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c --- a/drivers/block/ll_rw_blk.c +++ b/drivers/block/ll_rw_blk.c @@ -3574,7 +3574,7 @@ queue_attr_show(struct kobject *kobj, st q = container_of(kobj, struct request_queue, kobj); if (!entry->show) - return 0; + return -EIO; return entry->show(q, page); } @@ -3588,7 +3588,7 @@ queue_attr_store(struct kobject *kobj, s q = container_of(kobj, struct request_queue, kobj); if (!entry->store) - return -EINVAL; + return -EIO; return entry->store(q, page, length); }