X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=common%2Fcmd_gpio.c;h=93c53a867cba3786ce9e842160fd727fbd6befe8;hb=refs%2Fheads%2Fmaster;hp=65d6df451c6d4f4c5dc9c26a94a02a536b42386e;hpb=2db8c2d61a05bb4a94bb341329c6de811757c111;p=karo-tx-uboot.git

diff --git a/common/cmd_gpio.c b/common/cmd_gpio.c
index 65d6df451c..93c53a867c 100644
--- 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 */
@@ -208,11 +208,17 @@ 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;
 }
 
+#ifdef gpio_status
+#define gpio_status_help_msg "gpio status [-a] [<bank> | <pin>]  - show [all/claimed] GPIOs"
+#else
+#define gpio_status_help_msg ""
+#endif
+
 U_BOOT_CMD(gpio, 4, 0, do_gpio,
 	   "query and control gpio pins",
 	   "<input|set|clear|toggle> <pin>\n"
 	   "    - input/set/clear/toggle the specified pin\n"
-	   "gpio status [-a] [<bank> | <pin>]  - show [all/claimed] GPIOs");
+	   gpio_status_help_msg);