diff options
Diffstat (limited to 'drivers/hv/vmbus_drv.c')
| -rw-r--r-- | drivers/hv/vmbus_drv.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 183a5b07c3ad..e356ea4752c0 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -1019,7 +1019,10 @@ static struct bus_type hv_bus = { struct onmessage_work_context { struct work_struct work; - struct hv_message msg; + struct { + struct hv_message_header header; + u8 payload[]; + } msg; }; static void vmbus_onmessage_work(struct work_struct *work) @@ -1072,7 +1075,8 @@ void vmbus_on_msg_dpc(unsigned long data) goto msg_handled; if (entry->handler_type == VMHT_BLOCKING) { - ctx = kmalloc(sizeof(*ctx), GFP_ATOMIC); + ctx = kmalloc(sizeof(*ctx) + msg->header.payload_size, + GFP_ATOMIC); if (ctx == NULL) return; @@ -1126,10 +1130,11 @@ static void vmbus_force_channel_rescinded(struct vmbus_channel *channel) WARN_ON(!is_hvsock_channel(channel)); /* - * sizeof(*ctx) is small and the allocation should really not fail, + * Allocation size is small and the allocation should really not fail, * otherwise the state of the hv_sock connections ends up in limbo. */ - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL | __GFP_NOFAIL); + ctx = kzalloc(sizeof(*ctx) + sizeof(*rescind), + GFP_KERNEL | __GFP_NOFAIL); /* * So far, these are not really used by Linux. Just set them to the @@ -1139,7 +1144,7 @@ static void vmbus_force_channel_rescinded(struct vmbus_channel *channel) ctx->msg.header.payload_size = sizeof(*rescind); /* These values are actually used by Linux. */ - rescind = (struct vmbus_channel_rescind_offer *)ctx->msg.u.payload; + rescind = (struct vmbus_channel_rescind_offer *)ctx->msg.payload; rescind->header.msgtype = CHANNELMSG_RESCIND_CHANNELOFFER; rescind->child_relid = channel->offermsg.child_relid; |