linux-kernel - Re: [PATCH] s390/dasd: use IS_ERR_OR

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Message-ID: <76db63b3-489e-4ba2-bfc5-280c04f1e91e@linux.ibm.com>
Date: Fri, 15 Aug 2025 16:11:55 +0200
From: Stefan Haberland <sth@...ux.ibm.com>
To: Yang Xiuwei <yangxiuwei2025@....com>, hoeppner@...ux.ibm.com
Cc: hca@...ux.ibm.com, gor@...ux.ibm.com, agordeev@...ux.ibm.com,
        borntraeger@...ux.ibm.com, svens@...ux.ibm.com,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yang Xiuwei <yangxiuwei@...inos.cn>
Subject: Re: [PATCH] s390/dasd: use IS_ERR_OR_NULL() for debugfs error
 checking


Am 14.08.25 um 09:12 schrieb Yang Xiuwei:
> From: Yang Xiuwei <yangxiuwei@...inos.cn>
>
> Current code checks both `!pde` and `IS_ERR(pde)` separately when
> handling debugfs directory creation. Replace with IS_ERR_OR_NULL()
> for more concise error checking.
>
> This change applies to:
> 1. dasd_debugfs_setup() helper function
> 2. dasd_statistics_createroot() initialization code
>
> Signed-off-by: Yang Xiuwei <yangxiuwei@...inos.cn>

applied, thanks