Re: [PATCH] ext4: Use IS_ERR_OR_NULL() helper function

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To: viro@xxxxxxxxxxxxxxxxxx
Subject: Re: [PATCH] ext4: Use IS_ERR_OR_NULL() helper function
From: Xichao Zhao <zhao.xichao@xxxxxxxx>
Date: Wed, 30 Jul 2025 17:42:40 +0800
Cc: adilger.kernel@xxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, tytso@xxxxxxx, zhao.xichao@xxxxxxxx
In-reply-to: <20250730064937.GM222315@ZenIV>
References: <20250730064937.GM222315@ZenIV>

Thank you for your response. As a beginner who just started submitting patches to the community, 
I mistakenly thought these could simplify the code. I have learned a lot from your reply, thank you very much.

References:
- Re: [PATCH] ext4: Use IS_ERR_OR_NULL() helper function
  - From: Al Viro

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