staging: vchiq: delete obselete comment

This comment describes a security problem which was fixed in commit
eb819d324f6e ("staging: vchiq: avoid mixing kernel and user pointers").
The bug is fixed now so the FIXME can be removed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/X/RnUjY3XkZohk7w@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index f500a704380565e118cfd6717694e106a06fa2eb..54770a9b4735abddb97896bbd4fef4b78d55ba2e 100644 (file)
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -999,13 +999,6 @@ static int vchiq_irq_queue_bulk_tx_rx(struct vchiq_instance *instance,
                userdata = &waiter->bulk_waiter;
        }
 
-       /*
-        * FIXME address space mismatch:
-        * args->data may be interpreted as a kernel pointer
-        * in create_pagelist() called from vchiq_bulk_transfer(),
-        * accessing kernel data instead of user space, based on the
-        * address.
-        */
        status = vchiq_bulk_transfer(args->handle, NULL, args->data, args->size,
                                     userdata, args->mode, dir);