From d6dd2fe71153f0ff748bf188bd4af076fe09a0a6 Mon Sep 17 00:00:00 2001
From: Nick Child <nnac123@linux.ibm.com>
Date: Mon, 31 Oct 2022 10:06:42 -0500
Subject: [PATCH] ibmvnic: Free rwi on reset success
References: bsc#1184350 ltc#191533 git-fixes
Patch-mainline: v6.1-rc4
Git-commit: d6dd2fe71153f0ff748bf188bd4af076fe09a0a6
Free the rwi structure in the event that the last rwi in the list
processed successfully. The logic in commit 4f408e1fa6e1 ("ibmvnic:
retry reset if there are no other resets") introduces an issue that
results in a 32 byte memory leak whenever the last rwi in the list
gets processed.
Fixes: 4f408e1fa6e1 ("ibmvnic: retry reset if there are no other resets")
Signed-off-by: Nick Child <nnac123@linux.ibm.com>
Link: https://lore.kernel.org/r/20221031150642.13356-1-nnac123@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
drivers/net/ethernet/ibm/ibmvnic.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 65dbfbec487a..9282381a438f 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -3007,19 +3007,19 @@ static void __ibmvnic_reset(struct work_struct *work)
rwi = get_next_rwi(adapter);
/*
- * If there is another reset queued, free the previous rwi
- * and process the new reset even if previous reset failed
- * (the previous reset could have failed because of a fail
- * over for instance, so process the fail over).
- *
* If there are no resets queued and the previous reset failed,
* the adapter would be in an undefined state. So retry the
* previous reset as a hard reset.
+ *
+ * Else, free the previous rwi and, if there is another reset
+ * queued, process the new reset even if previous reset failed
+ * (the previous reset could have failed because of a fail
+ * over for instance, so process the fail over).
*/
- if (rwi)
- kfree(tmprwi);
- else if (rc)
+ if (!rwi && rc)
rwi = tmprwi;
+ else
+ kfree(tmprwi);
if (rwi && (rwi->reset_reason == VNIC_RESET_FAILOVER ||
rwi->reset_reason == VNIC_RESET_MOBILITY || rc))
--
2.35.3