[PATCH 1/3] gpiolib: no need to cast away return value of debugfs_create_file()

[Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>]

It is fine to ignore the return value (and encouraged), so need to cast
away the return value, you will not get a build warning at all.

Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Cc: linux-gpio@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpio/gpiolib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index e013d417a936..d378774d3456 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -4805,8 +4805,8 @@ static const struct file_operations gpiolib_operations = {
 static int __init gpiolib_debugfs_init(void)
 {
 	/* /sys/kernel/debug/gpio */
-	(void) debugfs_create_file("gpio", S_IFREG | S_IRUGO,
-				NULL, NULL, &gpiolib_operations);
+	debugfs_create_file("gpio", S_IFREG | S_IRUGO, NULL, NULL,
+			    &gpiolib_operations);
 	return 0;
 }
 subsys_initcall(gpiolib_debugfs_init);
-- 
2.22.0