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Date:   Mon, 27 Jan 2020 20:05:00 -0800
From:   Jakub Kicinski <>
To:     Taehee Yoo <>
Subject: Re: [PATCH net v2 4/6] netdevsim: use IS_ERR instead of
 IS_ERR_OR_NULL for debugfs

On Mon, 27 Jan 2020 14:30:44 +0000, Taehee Yoo wrote:
> Debugfs APIs return valid pointer or error pointer. it doesn't return NULL.
> So, using IS_ERR is enough, not using IS_ERR_OR_NULL.
> Reported-by: kbuild test robot <>
> Reported-by: Dan Carpenter <>
> Signed-off-by: Taehee Yoo <>

Reviewed-by: Jakub Kicinski <>

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