[xenial][PATCH v2 6/8] Drivers: hv: util: don't forget to init host_ts.lock

Marcelo Henrique Cerri marcelo.cerri at canonical.com
Fri Jun 30 19:21:32 UTC 2017

From: Dexuan Cui <decui at microsoft.com>

Without the patch, I always get a "BUG: spinlock bad magic" warning.

Fixes: 3716a49a81ba ("hv_utils: implement Hyper-V PTP source")

Signed-off-by: Dexuan Cui <decui at microsoft.com>
Cc: Vitaly Kuznetsov <vkuznets at redhat.com>
Cc: "K. Y. Srinivasan" <kys at microsoft.com>
Cc: Haiyang Zhang <haiyangz at microsoft.com>
Cc: Stephen Hemminger <sthemmin at microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
(cherry picked from commit 5a16dfc855127906fcd2935fb039bc8989313915)
Signed-off-by: Marcelo Henrique Cerri <marcelo.cerri at canonical.com>
 drivers/hv/hv_util.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index 45a4f92ecb39..b2cc46e3dd86 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -580,6 +580,8 @@ static int hv_timesync_init(struct hv_util_service *srv)
 	if (!hyperv_cs)
 		return -ENODEV;
+	spin_lock_init(&host_ts.lock);
 	INIT_WORK(&wrk.work, hv_set_host_time);

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