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SubjectRe: [PATCH] net: dsa: lan9303: correctly check return value of devm_gpiod_get_optional
On Sun, Nov 12, 2017 at 11:38:09PM +0800, Pan Bian wrote:
> 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 <>

Reviewed-by: Andrew Lunn <>


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