vmci_host: get rid of pointless access_ok()

get_user_pages_fast() doesn't need the caller to check that.
NB: reachable only from ioctl(2) and only under USER_DS

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2020-05-07 23:28:15 -04:00
parent fd8ec4dd4a
commit 87c233b815

View File

@ -233,8 +233,6 @@ static int vmci_host_setup_notify(struct vmci_ctx *context,
* about the size.
*/
BUILD_BUG_ON(sizeof(bool) != sizeof(u8));
if (!access_ok((void __user *)uva, sizeof(u8)))
return VMCI_ERROR_GENERIC;
/*
* Lock physical page backing a given user VA.