Re: [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 <bianpan2016@163.com>