linux-kernel - Re: [PATCH v2] ata: pata_pxa: Fix potential NULL pointer dereference in pxa_ata

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Message-ID: <2804da1e-b636-4a08-a42b-1eb77b7556e0@kernel.org>
Date: Tue, 8 Apr 2025 12:43:36 +0900
From: Damien Le Moal <dlemoal@...nel.org>
To: Henry Martin <bsdhenrymartin@...il.com>, cassel@...nel.org
Cc: linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ata: pata_pxa: Fix potential NULL pointer dereference
 in pxa_ata_probe()

On 4/4/25 3:14 PM, Henry Martin wrote:
> devm_ioremap() returns NULL on error. Currently, pxa_ata_probe() does
> not check for this case, which can result in a NULL pointer dereference.
> 
> Add NULL check after devm_ioremap() to prevent this issue.
> 
> Fixes: 2dc6c6f15da9 ("[ARM] pata_pxa: DMA-capable PATA driver")
> Signed-off-by: Henry Martin <bsdhenrymartin@...il.com>

Applied to for-6.15-fixes. Thanks !

-- 
Damien Le Moal
Western Digital Research