From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Date: Fri, 25 Feb 2022 06:23:52 +0000 (-0800)
Subject: ibmvnic: initialize rc before completing wait
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=765559b10ce514eb1576595834f23cdc92125fee;p=linux.git

ibmvnic: initialize rc before completing wait

We should initialize ->init_done_rc before calling complete(). Otherwise
the waiting thread may see ->init_done_rc as 0 before we have updated it
and may assume that the CRQ was successful.

Fixes: 6b278c0cb378 ("ibmvnic delay complete()")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 86d5221718925..c73c699600a8a 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -5323,9 +5323,9 @@ static void ibmvnic_handle_crq(union ibmvnic_crq *crq,
 			}
 
 			if (!completion_done(&adapter->init_done)) {
-				complete(&adapter->init_done);
 				if (!adapter->init_done_rc)
 					adapter->init_done_rc = -EAGAIN;
+				complete(&adapter->init_done);
 			}
 
 			break;