gpio: gpiolib-of: Use PTR_ERR_OR_ZERO

PTR_RET is deprecated. Use PTR_ERR_OR_ZERO instead. While at it
also include missing err.h header.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index e0a98f581f58..2024d45e5503 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -12,6 +12,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/io.h>
@@ -90,7 +91,7 @@ struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
 
         of_node_put(gg_data.gpiospec.np);
         pr_debug("%s exited with status %d\n", __func__,
-                 PTR_RET(gg_data.out_gpio));
+                 PTR_ERR_OR_ZERO(gg_data.out_gpio));
         return gg_data.out_gpio;
 }
 EXPORT_SYMBOL(of_get_named_gpiod_flags);