netdev - [PATCH 3/6] scsi: ipr: fix missing/incorrect resource cleanup in error case

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Message-ID: <20220529153456.4183738-4-cgxu519@mykernel.net>
Date:   Sun, 29 May 2022 23:34:53 +0800
From:   Chengguang Xu <cgxu519@...ernel.net>
To:     netdev@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-scsi@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-media@...r.kernel.org
Cc:     Chengguang Xu <cgxu519@...ernel.net>
Subject: [PATCH 3/6] scsi: ipr: fix missing/incorrect resource cleanup in error case

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.

Signed-off-by: Chengguang Xu <cgxu519@...ernel.net>
---
 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 256ec6d08c16..9d01a3e3c26a 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;
-- 
2.27.0