linux-kernel - Re: [PATCH] isdn: hfcpci: check the return value of dma_set_mask() in setup

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Message-ID: <20220303211557.16458976@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net>
Date:   Thu, 3 Mar 2022 21:15:57 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Jia-Ju Bai <baijiaju1990@...il.com>
Cc:     isdn@...ux-pingi.de, davem@...emloft.net, zou_wei@...wei.com,
        zheyuma97@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] isdn: hfcpci: check the return value of dma_set_mask()
 in setup_hw()

On Wed,  2 Mar 2022 18:57:10 -0800 Jia-Ju Bai wrote:
> The function dma_set_mask() in setup_hw() can fail, so its return value
> should be checked.
> 
> Fixes: e85da794f658 ("mISDN: switch from 'pci_' to 'dma_' API")

The change under Fixes only switched the helper the driver uses,
it did not introduce the problem. The Fixes tag should point to 
the earliest commit where the problem is present.