From: Thomas Fourier <fourier.thomas@gmail.com>
Cc: Thomas Fourier <fourier.thomas@gmail.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Kees Cook <kees@kernel.org>,
Manuel Lauss <manuel.lauss@googlemail.com>,
Artem Bityutskiy <dedekind1@gmail.com>,
linux-mtd@lists.infradead.org (open list:NAND FLASH SUBSYSTEM),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH] MTD: nand: Fix release_mem_region() size
Date: Wed, 14 Oct 2026 10:22:51 +0200 [thread overview]
Message-ID: <20261014082258.33315-2-fourier.thomas@gmail.com> (raw)
In au1550nd_probe(), request_mem_region() is called with size
resource_size(r), and release_mem_region() is called in the error path
with the same size. Howeve, in the cleanup function au1550nd_remove()
calls release_mem_region() with size 0x1000.
Change release size to match request.
Fixes: b67a1a02d463 ("MTD: nand: make au1550nd.c a platform_driver")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
---
drivers/mtd/nand/raw/au1550nd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/au1550nd.c b/drivers/mtd/nand/raw/au1550nd.c
index f1e99197ab84..623a10dbce55 100644
--- a/drivers/mtd/nand/raw/au1550nd.c
+++ b/drivers/mtd/nand/raw/au1550nd.c
@@ -348,7 +348,7 @@ static void au1550nd_remove(struct platform_device *pdev)
WARN_ON(ret);
nand_cleanup(chip);
iounmap(ctx->base);
- release_mem_region(r->start, 0x1000);
+ release_mem_region(r->start, resource_size(r));
kfree(ctx);
}
--
2.53.0
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next reply other threads:[~2026-10-14 8:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-14 8:22 Thomas Fourier [this message]
2026-10-14 9:23 ` [PATCH] MTD: nand: Fix release_mem_region() size Miquel Raynal
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