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

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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>
This commit is contained in:
Dmitry Torokhov
2005-04-29 01:27:34 -05:00
committed by Greg Kroah-Hartman
parent 6c1852a08e
commit 70f2817a43
7 changed files with 12 additions and 12 deletions
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kernel/params.c
+2 -2
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@@ -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;