linux-kernel - [PATCH AUTOSEL 4.19 13/18] scsi: pmcraid: Fix missing resource cleanup in error case

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Date:   Mon, 13 Jun 2022 22:09:36 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Chengguang Xu <cgxu519@...ernel.net>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Sasha Levin <sashal@...nel.org>, jejb@...ux.vnet.ibm.com,
        linux-scsi@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 13/18] scsi: pmcraid: Fix missing resource cleanup in error case

From: Chengguang Xu <cgxu519@...ernel.net>

[ Upstream commit ec1e8adcbdf661c57c395bca342945f4f815add7 ]

Fix missing resource cleanup (when '(--i) == 0') for error case in
pmcraid_register_interrupt_handler().

Link: https://lore.kernel.org/r/20220529153456.4183738-6-cgxu519@mykernel.net
Reviewed-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Chengguang Xu <cgxu519@...ernel.net>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/scsi/pmcraid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 4e86994e10e8..6e96229c58e0 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -4559,7 +4559,7 @@ pmcraid_register_interrupt_handler(struct pmcraid_instance *pinstance)
 	return 0;
 
 out_unwind:
-	while (--i > 0)
+	while (--i >= 0)
 		free_irq(pci_irq_vector(pdev, i), &pinstance->hrrq_vector[i]);
 	pci_free_irq_vectors(pdev);
 	return rc;
-- 
2.35.1