Staging: hv: vmbus: Get rid of the poll timer in the channel state

Since tis is not used anymore,  get rid of the poll timer in the channel state.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/channel.c

@@ -555,7 +555,6 @@ void vmbus_close(struct vmbus_channel *channel)
 
 	/* Stop callback and cancel the timer asap */
 	channel->onchannel_callback = NULL;
-	del_timer_sync(&channel->poll_timer);
 
 	/* Send a closing message */
 	info = kmalloc(sizeof(*info) +

drivers/staging/hv/channel_mgmt.c

@@ -283,10 +283,6 @@ static struct vmbus_channel *alloc_channel(void)
 
 	spin_lock_init(&channel->inbound_lock);
 
-	init_timer(&channel->poll_timer);
-	channel->poll_timer.data = (unsigned long)channel;
-	channel->poll_timer.function = vmbus_ontimer;
-
 	channel->controlwq = create_workqueue("hv_vmbus_ctl");
 	if (!channel->controlwq) {
 		kfree(channel);
@@ -315,7 +311,6 @@ static void release_channel(struct work_struct *work)
  */
 void free_channel(struct vmbus_channel *channel)
 {
-	del_timer_sync(&channel->poll_timer);
 
 	/*
 	 * We have to release the channel's workqueue/thread in the vmbus's

drivers/staging/hv/hyperv.h

@@ -528,7 +528,6 @@ struct vmbus_channel {
 
 	struct hv_device *device_obj;
 
-	struct timer_list poll_timer; /* SA-111 workaround */
 	struct work_struct work;
 
 	enum vmbus_channel_state state;