gpio: use appropriate return values for cmd handler

diff --git a/common/cmd_gpio.c b/common/cmd_gpio.c
index 65d6df4..58d8125 100644 (file)
--- a/common/cmd_gpio.c
+++ b/common/cmd_gpio.c
@@ -186,7 +186,7 @@ static int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
        ret = gpio_request(gpio, "cmd_gpio");
        if (ret && ret != -EBUSY) {
                printf("gpio: requesting pin %u failed\n", gpio);
-               return -1;
+               return CMD_RET_FAILURE;
        }
 
        /* finally, let's do it: set direction and exec command */
@@ -208,7 +208,7 @@ static int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
        if (ret != -EBUSY)
                gpio_free(gpio);
 
-       return value;
+       return (ret && ret != -EBUSY) ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
 }
 
 U_BOOT_CMD(gpio, 4, 0, do_gpio,