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Date:   Tue, 14 Nov 2017 21:35:22 +0900 (KST)
From:   David Miller <>
Subject: Re: [PATCH] net: dsa: lan9303: correctly check return value of

From: Pan Bian <>
Date: Sun, 12 Nov 2017 23:38:09 +0800

> Function devm_gpiod_get_optional() returns an ERR_PTR on failure. Its
> return value should not be validated by a NULL check. Instead, use IS_ERR.
> Signed-off-by: Pan Bian <>


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