From 79890c2ec4860c3b715f89248c51abcc76a1fa39 Mon Sep 17 00:00:00 2001
From: Brian Masney <masneyb@onstation.org>
Date: Wed, 13 Feb 2019 20:36:41 -0500
Subject: [PATCH] qcom: ssbi-gpio: correct boundary conditions in
 pm8xxx_domain_translate

SSBI GPIOs are numbered 1..ngpio, so the boundary check in
pm8xxx_domain_translate() is off by one. This patch corrects that check.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
index 84a232450000d..08dd62b5cebec 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c
@@ -710,7 +710,8 @@ static int pm8xxx_domain_translate(struct irq_domain *domain,
 	struct pm8xxx_gpio *pctrl = container_of(domain->host_data,
 						 struct pm8xxx_gpio, chip);
 
-	if (fwspec->param_count != 2 || fwspec->param[0] >= pctrl->chip.ngpio)
+	if (fwspec->param_count != 2 || fwspec->param[0] < 1 ||
+	    fwspec->param[0] > pctrl->chip.ngpio)
 		return -EINVAL;
 
 	*hwirq = fwspec->param[0] - PM8XXX_GPIO_PHYSICAL_OFFSET;
-- 
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