lkml.org 
[lkml]   [2019]   [Mar]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 7/9] nvme/core: add mdev interfaces
On Tue, Mar 19, 2019 at 04:41:14PM +0200, Maxim Levitsky wrote:
> +int nvme_core_register_mdev_driver(struct nvme_mdev_driver *driver_ops)
> +{
> + struct nvme_ctrl *ctrl;
> +
> + if (mdev_driver_interface)
> + return -EEXIST;
> +
> + mdev_driver_interface = driver_ops;

Can mdev_driver_interface be accessed from two CPUs at the same time?
mdev_driver_interface isn't protected by the mutex. The state_changed
functions below also don't protect mdev_driver_interface.
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2019-03-20 12:47    [W:0.112 / U:0.212 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site