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Drivers: hv: vmbus: Cleanup vmbus_establish_gpadl() 

Eliminate the call to BUG_ON() by waiting for the host to respond. We are
trying to reclaim the ownership of memory that was given to the host and so
we will have to wait until the host responds.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan 2014-08-27 16:25:34 -07:00 committed by Greg Kroah-Hartman
parent 66be653083
commit 72c6b71c24
1 changed files with 1 additions and 4 deletions
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5
drivers/hv/channel.c
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@ -363,7 +363,6 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
u32 next_gpadl_handle;
unsigned long flags;
int ret = 0;
int t;
next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle);
atomic_inc(&vmbus_connection.next_gpadl_handle);
@ -410,9 +409,7 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
}
}
t = wait_for_completion_timeout(&msginfo->waitevent, 5*HZ);
BUG_ON(t == 0);
wait_for_completion(&msginfo->waitevent);
/* At this point, we received the gpadl created msg */
*gpadl_handle = gpadlmsg->gpadl;