linux-kernel - [PATCH 3.16 219/294] gpio: drop retval check enforcing from gpiochip

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Date:   Mon, 06 Nov 2017 23:03:02 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Abdoulaye Berthe" <berthe.ab@...il.com>,
        "Stephen Rothwell" <sfr@...b.auug.org.au>,
        "Linus Walleij" <linus.walleij@...aro.org>,
        "Arnd Bergmann" <arnd@...db.de>
Subject: [PATCH 3.16 219/294] gpio: drop retval check enforcing from
 gpiochip_remove()

3.16.50-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Linus Walleij <linus.walleij@...aro.org>

commit 14c8a620ba436511b1347c592633befa49535176 upstream.

As we start to decomission the return value from gpiochip_remove()
the compilers emit warnings due to the function being tagged
__must_check. So drop this until we remove the return value
altogether.

Cc: Abdoulaye Berthe <berthe.ab@...il.com>
Suggested-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 include/linux/gpio/driver.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -141,7 +141,7 @@ extern const char *gpiochip_is_requested
 
 /* add/remove chips */
 extern int gpiochip_add(struct gpio_chip *chip);
-extern int __must_check gpiochip_remove(struct gpio_chip *chip);
+extern int gpiochip_remove(struct gpio_chip *chip);
 extern struct gpio_chip *gpiochip_find(void *data,
 			      int (*match)(struct gpio_chip *chip, void *data));