[PATCH 2/3] gpio: tegra: no need to cast away return value of debugfs_create_file()

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

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@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpio-tegra.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 6d9b6906b9d0..a54bba1bda6c 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -550,8 +550,8 @@ DEFINE_SHOW_ATTRIBUTE(tegra_dbg_gpio);
 
 static void tegra_gpio_debuginit(struct tegra_gpio_info *tgi)
 {
-	(void) debugfs_create_file("tegra_gpio", 0444,
-				   NULL, tgi, &tegra_dbg_gpio_fops);
+	debugfs_create_file("tegra_gpio", 0444, NULL, tgi,
+			    &tegra_dbg_gpio_fops);
 }
 
 #else
-- 
2.22.0