[PATCH 4/8] Drivers: hv: vmbus: Fix the offer_in_progress in vmbus_process_offer()

kys
2018-06-05T20:39:02Z

From: Dexuan Cui <decui@microsoft.com>

I didn't really hit a real bug, but just happened to spot the bug:
we have decreased the counter at the beginning of vmbus_process_offer(),
so we mustn't decrease it again.

Fixes: 6f3d791f3006 ("Drivers: hv: vmbus: Fix rescind handling issues")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Cc: stable@vger.kernel.org
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Stable <stable@vger.kernel.org> # 4.14 and above
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
---
drivers/hv/channel_mgmt.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index ecc2bd275a73..f3b551a50653 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -527,10 +527,8 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
struct hv_device *dev
= newchannel->primary_channel->device_obj;

- if (vmbus_add_channel_kobj(dev, newchannel)) {
- atomic_dec(&vmbus_connection.offer_in_progress);
+ if (vmbus_add_channel_kobj(dev, newchannel))
goto err_free_chan;
- }

if (channel->sc_creation_callback != NULL)
channel->sc_creation_callback(newchannel);
--
2.17.1