staging: sep: return -EFAULT on copy_from_user failure
authorDevendra Naga <devendra.aaru@gmail.com>
Sat, 27 Oct 2012 17:23:47 +0000 (13:23 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 29 Oct 2012 21:59:39 +0000 (14:59 -0700)
commitb58d6021d4dbc215dc975510bb2509e66e6061be
tree6541ed2e66a5b5ddb100f215741a3578ab40aef8
parent28c4ff643549f18a6c50df694ce4ba9975b7917f
staging: sep: return -EFAULT on copy_from_user failure

copy_from_user() returns the number of bytes remaining to be copied,
and it fails if user pointer is invalid, so return -EFAULT
so that the user gets a FAULT.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/sep/sep_main.c