[PATCH] sysfs: (rest) if show/store is missing return -EIO

sysfs: fix the rest of the kernel so if an attribute doesn't
       implement show or store method read/write will return
       -EIO instead of 0 or -EINVAL or -EPERM.

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/kernel/params.c b/kernel/params.c
index 5513844bec13..d586c35ef8fc 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -629,7 +629,7 @@ static ssize_t module_attr_show(struct kobject *kobj,
         mk = to_module_kobject(kobj);
 
         if (!attribute->show)
-                return -EPERM;
+                return -EIO;
 
         if (!try_module_get(mk->mod))
                 return -ENODEV;
@@ -653,7 +653,7 @@ static ssize_t module_attr_store(struct kobject *kobj,
         mk = to_module_kobject(kobj);
 
         if (!attribute->store)
-                return -EPERM;
+                return -EIO;
 
         if (!try_module_get(mk->mod))
                 return -ENODEV;