From: Charles Keepax ckeepax@opensource.cirrus.com
[ Upstream commit aafd56fc79041bf36f97712d4b35208cbe07db90 ]
kref_init starts with the reference count at 1, which will be balanced by the pinctrl_put in pinctrl_unregister. The additional kref_get in pinctrl_claim_hogs will increase this count to 2 and cause the hogs to not get freed when pinctrl_unregister is called.
Fixes: 6118714275f0 ("pinctrl: core: Fix pinctrl_register_and_init() with pinctrl_enable()") Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com Link: https://lore.kernel.org/r/20200228154142.13860-1-ckeepax@opensource.cirrus.c... Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pinctrl/core.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index c6ff4d5fa482e..76638dee65d94 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -2008,7 +2008,6 @@ static int pinctrl_claim_hogs(struct pinctrl_dev *pctldev) return PTR_ERR(pctldev->p); }
- kref_get(&pctldev->p->users); pctldev->hog_default = pinctrl_lookup_state(pctldev->p, PINCTRL_STATE_DEFAULT); if (IS_ERR(pctldev->hog_default)) {