diff options
Diffstat (limited to 'drivers/hv/hv_utils_transport.c')
| -rw-r--r-- | drivers/hv/hv_utils_transport.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/hv/hv_utils_transport.c b/drivers/hv/hv_utils_transport.c index 832777527936..b3de35ff6334 100644 --- a/drivers/hv/hv_utils_transport.c +++ b/drivers/hv/hv_utils_transport.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Kernel/userspace transport abstraction for Hyper-V util driver. * * Copyright (C) 2015, Vitaly Kuznetsov <vkuznets@redhat.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * */ #include <linux/slab.h> @@ -23,7 +13,7 @@ #include "hv_utils_transport.h" static DEFINE_SPINLOCK(hvt_list_lock); -static struct list_head hvt_list = LIST_HEAD_INIT(hvt_list); +static LIST_HEAD(hvt_list); static void hvt_reset(struct hvutil_transport *hvt) { @@ -139,8 +129,7 @@ static int hvt_op_open(struct inode *inode, struct file *file) * device gets released. */ hvt->mode = HVUTIL_TRANSPORT_CHARDEV; - } - else if (hvt->mode == HVUTIL_TRANSPORT_NETLINK) { + } else if (hvt->mode == HVUTIL_TRANSPORT_NETLINK) { /* * We're switching from netlink communication to using char * device. Issue the reset first. @@ -205,7 +194,7 @@ static void hvt_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp) } spin_unlock(&hvt_list_lock); if (!hvt_found) { - pr_warn("hvt_cn_callback: spurious message received!\n"); + pr_warn("%s: spurious message received!\n", __func__); return; } @@ -220,7 +209,7 @@ static void hvt_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp) if (hvt->mode == HVUTIL_TRANSPORT_NETLINK) hvt_found->on_msg(msg->data, msg->len); else - pr_warn("hvt_cn_callback: unexpected netlink message!\n"); + pr_warn("%s: unexpected netlink message!\n", __func__); mutex_unlock(&hvt->lock); } @@ -270,8 +259,9 @@ int hvutil_transport_send(struct hvutil_transport *hvt, void *msg, int len, hvt->outmsg_len = len; hvt->on_read = on_read_cb; wake_up_interruptible(&hvt->outmsg_q); - } else + } else { ret = -ENOMEM; + } out_unlock: mutex_unlock(&hvt->lock); return ret; |