linux-kernel - [PATCH] mtd: maps: pcmciamtd: fix potential memory leak in pcmciamtd

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Message-ID: <20251103152141.57160-1-nihaal@cse.iitm.ac.in>
Date: Mon,  3 Nov 2025 20:51:39 +0530
From: Abdun Nihaal <nihaal@....iitm.ac.in>
To: miquel.raynal@...tlin.com
Cc: Abdun Nihaal <nihaal@....iitm.ac.in>,
	richard@....at,
	vigneshr@...com,
	linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mtd: maps: pcmciamtd: fix potential memory leak in pcmciamtd_detach()

The memory allocated for struct pcmciamtd_dev in pcmciamtd_probe() is
not freed in the corresponding remove function pcmciamtd_detach().
Fix that by freeing it in the remove function.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Abdun Nihaal <nihaal@....iitm.ac.in>
---
Compile tested only. Issue found using static analysis.

 drivers/mtd/maps/pcmciamtd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c
index 2ac79e1cedd9..206a3c463e6e 100644
--- a/drivers/mtd/maps/pcmciamtd.c
+++ b/drivers/mtd/maps/pcmciamtd.c
@@ -665,6 +665,7 @@ static void pcmciamtd_detach(struct pcmcia_device *link)
 	}
 
 	pcmciamtd_release(link);
+	kfree(dev);
 }
 
 
-- 
2.43.0