isdn/kcapi: return -EFAULT on copy_from_user errors
authorDan Carpenter <error27@gmail.com>
Wed, 2 Jun 2010 23:56:13 +0000 (23:56 +0000)
committerDavid S. Miller <davem@davemloft.net>
Thu, 3 Jun 2010 10:28:22 +0000 (03:28 -0700)
commit60a5711db646b87b9530b16cbaf3bd53ac5594a5
treebbd3c14db8ad6210d897144d668f7b15a3f4fac2
parent3b21b508ecc9e043839a5337563cfc77f9fcedb9
isdn/kcapi: return -EFAULT on copy_from_user errors

copy_from_user() returns the number of bytes remaining but we should
return -EFAULT here.  The error code gets returned to the user.  Both
old_capi_manufacturer() and capi20_manufacturer() had other places
that already returned -EFAULT so this won't break anything.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/isdn/capi/kcapi.c