[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>
diff --git a/kernel/params.c b/kernel/params.c
index 5513844..d586c35ef 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -629,7 +629,7 @@
mk = to_module_kobject(kobj);
if (!attribute->show)
- return -EPERM;
+ return -EIO;
if (!try_module_get(mk->mod))
return -ENODEV;
@@ -653,7 +653,7 @@
mk = to_module_kobject(kobj);
if (!attribute->store)
- return -EPERM;
+ return -EIO;
if (!try_module_get(mk->mod))
return -ENODEV;