[PATCH] mtd: maps: pci: balance PCI enable on cleanup

From: Myeonghun Pak <mhun512@gmail.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: [PATCH] mtd: maps: pci: balance PCI enable on cleanup
Date: Mon, 14 Sep 2026 21:06:47 -0400	[thread overview]
Message-ID: <20260915010647.54099-1-mhun512@gmail.com> (raw)

mtd_pci_probe() leaves the PCI device enabled on later probe failure and
mtd_pci_remove() does not disable it either. Use pcim_enable_device() to
release the enable reference after the existing map and region cleanup.

The imbalance is already present in the initial Git import.

This issue was identified during our ongoing static-analysis research
while reviewing kernel code.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Assisted-by: LLM
Co-developed-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
---
 drivers/mtd/maps/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c
--- a/drivers/mtd/maps/pci.c
+++ b/drivers/mtd/maps/pci.c
@@ -250,7 +250,7 @@
 	struct mtd_info *mtd = NULL;
 	int err;
 
-	err = pci_enable_device(dev);
+	err = pcim_enable_device(dev);
 	if (err)
 		goto out;
 

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