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From:   Sasha Levin <sashal@kernel.org>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc:     Kevin Hao <haokexin@gmail.com>, kbuild test robot <lkp@intel.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Sasha Levin <sashal@kernel.org>, linux-gpio@vger.kernel.org
Subject: [PATCH AUTOSEL 5.5 383/542] gpio: Fix the no return statement warning
Date:   Fri, 14 Feb 2020 10:46:15 -0500
Message-Id: <20200214154854.6746-383-sashal@kernel.org>
In-Reply-To: <20200214154854.6746-1-sashal@kernel.org>
References: <20200214154854.6746-1-sashal@kernel.org>
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From: Kevin Hao <haokexin@gmail.com>

[ Upstream commit 9c6722d85e92233082da2b3623685bba54d6093e ]

In commit 242587616710 ("gpiolib: Add support for the irqdomain which
doesn't use irq_fwspec as arg") we have changed the return type of
gpiochip_populate_parent_fwspec_twocell/fourcell() from void to void *,
but forgot to add a return statement for these two dummy functions.
Add "return NULL" to fix the build warnings.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Link: https://lore.kernel.org/r/20200116095003.30324-1-haokexin@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/gpio/driver.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index e2480ef94c559..5dce9c67a961e 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -553,6 +553,7 @@ static inline void gpiochip_populate_parent_fwspec_twocell(struct gpio_chip *chi
 						    unsigned int parent_hwirq,
 						    unsigned int parent_type)
 {
+	return NULL;
 }
 
 static inline void gpiochip_populate_parent_fwspec_fourcell(struct gpio_chip *chip,
@@ -560,6 +561,7 @@ static inline void gpiochip_populate_parent_fwspec_fourcell(struct gpio_chip *ch
 						     unsigned int parent_hwirq,
 						     unsigned int parent_type)
 {
+	return NULL;
 }
 
 #endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */
-- 
2.20.1