linux-kernel - [PATCH] hpsa: fix a memory leak in hpsa_find

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Message-Id: <20260107085617.3391860-1-lihaoxiang@isrc.iscas.ac.cn>
Date: Wed,  7 Jan 2026 16:56:17 +0800
From: Haoxiang Li <lihaoxiang@...c.iscas.ac.cn>
To: James.Bottomley@...senPartnership.com,
	don.brace@...rochip.com,
	martin.petersen@...cle.com,
	jbottomley@...allels.com,
	scameron@...rdog.cce.hp.com
Cc: storagedev@...rochip.com,
	linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Haoxiang Li <lihaoxiang@...c.iscas.ac.cn>,
	stable@...r.kernel.org
Subject: [PATCH] hpsa: fix a memory leak in hpsa_find_cfgtables()

If write_driver_ver_to_cfgtable() fails, add iounmap() to
release the memory allocated by remap_pci_mem().

Fixes: 580ada3c1e2f ("[SCSI] hpsa: do a better job of detecting controller reset failure")
Cc: stable@...r.kernel.org
Signed-off-by: Haoxiang Li <lihaoxiang@...c.iscas.ac.cn>
---
 drivers/scsi/hpsa.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 3654b12c5d5a..4cc129d2d6f2 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -7646,8 +7646,11 @@ static int hpsa_find_cfgtables(struct ctlr_info *h)
 		return -ENOMEM;
 	}
 	rc = write_driver_ver_to_cfgtable(h->cfgtable);
-	if (rc)
+	if (rc) {
+		iounmap(h->cfgtable);
+		h->cfgtable = NULL;
 		return rc;
+	}
 	/* Find performant mode table. */
 	trans_offset = readl(&h->cfgtable->TransMethodOffset);
 	h->transtable = remap_pci_mem(pci_resource_start(h->pdev,
-- 
2.25.1