diff options
| author | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-04-29 01:26:06 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-06-20 15:15:03 -0700 |
| commit | 6c1852a08e444a2e66367352a99c0e93c8bf3e97 (patch) | |
| tree | ffa075f75b7eb0e5b1399aeb8e34e6cf9a631a10 /drivers/block/cfq-iosched.c | |
| parent | fc7e4828995d8c9e4c9597f8a19179e4ab53f73e (diff) | |
| download | lwn-6c1852a08e444a2e66367352a99c0e93c8bf3e97.tar.gz lwn-6c1852a08e444a2e66367352a99c0e93c8bf3e97.zip | |
[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 <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/block/cfq-iosched.c')
| -rw-r--r-- | drivers/block/cfq-iosched.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/cfq-iosched.c b/drivers/block/cfq-iosched.c index 2210bacad56a..3ac47dde64da 100644 --- a/drivers/block/cfq-iosched.c +++ b/drivers/block/cfq-iosched.c @@ -1775,7 +1775,7 @@ cfq_attr_show(struct kobject *kobj, struct attribute *attr, char *page) 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, struct attribute *attr, struct cfq_fs_entry *entry = to_cfq(attr); if (!entry->store) - return -EINVAL; + return -EIO; return entry->store(e->elevator_data, page, length); } |