[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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 9102e3756f95..f37a13de804a 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -37,7 +37,7 @@ sysdev_show(struct kobject * kobj, struct attribute * attr, char * buffer)
 
         if (sysdev_attr->show)
                 return sysdev_attr->show(sysdev, buffer);
-        return 0;
+        return -EIO;
 }
 
 
@@ -50,7 +50,7 @@ sysdev_store(struct kobject * kobj, struct attribute * attr,
 
         if (sysdev_attr->store)
                 return sysdev_attr->store(sysdev, buffer, count);
-        return 0;
+        return -EIO;
 }
 
 static struct sysfs_ops sysfs_ops = {