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authorVitaly Kuznetsov <vkuznets@redhat.com>2016-02-27 02:13:16 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-03-02 03:57:20 +0300
commit75ff3a8a9168df750b5bd0589e897a6c0517a9f1 (patch)
tree8fd74ea7038aee9503e31dda1281010aa16a9713 /drivers/hv/connection.c
parent7be3e169444d2c625f15a0b6639252b98d1f226a (diff)
downloadlinux-75ff3a8a9168df750b5bd0589e897a6c0517a9f1.tar.xz
Drivers: hv: vmbus: avoid wait_for_completion() on crash
wait_for_completion() may sleep, it enables interrupts and this is something we really want to avoid on crashes because interrupt handlers can cause other crashes. Switch to the recently introduced vmbus_wait_for_unload() doing busy wait instead. Reported-by: Radim Krcmar <rkrcmar@redhat.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Radim Kr.má<rkrcmar@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv/connection.c')
-rw-r--r--drivers/hv/connection.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index fa86b2cb28b8..3b6dc0017269 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -236,7 +236,7 @@ void vmbus_disconnect(void)
/*
* First send the unload request to the host.
*/
- vmbus_initiate_unload();
+ vmbus_initiate_unload(false);
if (vmbus_connection.work_queue) {
drain_workqueue(vmbus_connection.work_queue);