[PATCH v2 3/3] Drivers: hv: vmbus: setup irq after synic is initialized

From: Vitaly Kuznetsov
Date: Tue Apr 21 2015 - 12:23:13 EST


vmbus_isr() uses synic pages which are being setup in hv_synic_alloc(), we
need to register this irq handler only after we allocate all the required
pages.

Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
---
drivers/hv/vmbus_drv.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index cf20400..e922804 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -822,11 +822,12 @@ static int vmbus_bus_init(int irq)
if (ret)
goto err_cleanup;

- hv_setup_vmbus_irq(vmbus_isr);
-
ret = hv_synic_alloc();
if (ret)
goto err_alloc;
+
+ hv_setup_vmbus_irq(vmbus_isr);
+
/*
* Initialize the per-cpu interrupt state and
* connect to the host.
--
1.9.3

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