From mboxrd@z Thu Jan 1 00:00:00 1970 From: weiyj.lk@gmail.com (Wei Yongjun) Date: Tue, 26 Jul 2016 14:51:58 +0000 Subject: [PATCH] pinctrl: meson: Drop pinctrl_unregister for devm_ registered device Message-ID: <1469544718-32001-1-git-send-email-weiyj.lk@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org It's not necessary to unregister pin controller device registered with devm_pinctrl_register() and using pinctrl_unregister() leads to a double free. This is detected by Coccinelle semantic patch. Signed-off-by: Wei Yongjun --- drivers/pinctrl/meson/pinctrl-meson.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c index 11623c6..44e69c9 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -727,13 +727,7 @@ static int meson_pinctrl_probe(struct platform_device *pdev) return PTR_ERR(pc->pcdev); } - ret = meson_gpiolib_register(pc); - if (ret) { - pinctrl_unregister(pc->pcdev); - return ret; - } - - return 0; + return meson_gpiolib_register(pc); } static struct platform_driver meson_pinctrl_driver = {