From: Vitaly Kuznetsov Date: Fri, 10 Jun 2016 00:08:56 +0000 (-0700) Subject: Drivers: hv: get rid of timeout in vmbus_open() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=396e287fa2ff46e83ae016cdcb300c3faa3b02f6;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git Drivers: hv: get rid of timeout in vmbus_open() vmbus_teardown_gpadl() can result in infinite wait when it is called on 5 second timeout in vmbus_open(). The issue is caused by the fact that gpadl teardown operation won't ever succeed for an opened channel and the timeout isn't always enough. As a guest, we can always trust the host to respond to our request (and there is nothing we can do if it doesn't). Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index a68830c848e4..9a88c63f6e0d 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -73,7 +73,6 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, void *in, *out; unsigned long flags; int ret, err = 0; - unsigned long t; struct page *page; spin_lock_irqsave(&newchannel->lock, flags); @@ -183,11 +182,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, goto error1; } - t = wait_for_completion_timeout(&open_info->waitevent, 5*HZ); - if (t == 0) { - err = -ETIMEDOUT; - goto error1; - } + wait_for_completion(&open_info->waitevent); spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags); list_del(&open_info->msglistentry);