[PATCH] sysfs: (driver/base) if show/store is missing return -EIO
sysfs: fix drivers/base so if an attribute doesn't implement
show or store method read/write will return -EIO
instead of 0.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 9102e37..f37a13d 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -37,7 +37,7 @@
if (sysdev_attr->show)
return sysdev_attr->show(sysdev, buffer);
- return 0;
+ return -EIO;
}
@@ -50,7 +50,7 @@
if (sysdev_attr->store)
return sysdev_attr->store(sysdev, buffer, count);
- return 0;
+ return -EIO;
}
static struct sysfs_ops sysfs_ops = {