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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Chengguang Xu <cgxu519@mykernel.net>
Date: Sun, 29 May 2022 23:34:53 +0800
Subject: [PATCH] scsi: ipr: Fix missing/incorrect resource cleanup in error
case
[ Upstream commit d64c491911322af1dcada98e5b9ee0d87e8c8fee ]
Fix missing resource cleanup (when '(--i) == 0') for error case in
ipr_alloc_mem() and skip incorrect resource cleanup (when '(--i) == 0') for
error case in ipr_request_other_msi_irqs() because variable i started from
1.
Link: https://lore.kernel.org/r/20220529153456.4183738-4-cgxu519@mykernel.net
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/ipr.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 104bee9b3a9dc80bfe171bebd8d96c9cb9d3aa27..00593d8953f1095dfcabb4faa8707f12758626cc 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -9795,7 +9795,7 @@ static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
GFP_KERNEL);
if (!ioa_cfg->hrrq[i].host_rrq) {
- while (--i > 0)
+ while (--i >= 0)
dma_free_coherent(&pdev->dev,
sizeof(u32) * ioa_cfg->hrrq[i].size,
ioa_cfg->hrrq[i].host_rrq,
@@ -10068,7 +10068,7 @@ static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg,
ioa_cfg->vectors_info[i].desc,
&ioa_cfg->hrrq[i]);
if (rc) {
- while (--i >= 0)
+ while (--i > 0)
free_irq(pci_irq_vector(pdev, i),
&ioa_cfg->hrrq[i]);
return rc;
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