From: Hans de Goede <hdegoede@redhat.com>
Date: Sat, 20 Sep 2014 14:54:34 +0000 (+0200)
Subject: usb: kbd: Do not treat -ENODEV as an error for usb_kbd_deregister
X-Git-Tag: v2014.10-rc3~1^2~15
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=0ea09dfe873657df47d83d5d4e0090bbf05c6abb;p=u-boot

usb: kbd: Do not treat -ENODEV as an error for usb_kbd_deregister

ENODEV menas no usb keyboard was registered, threat this as a successful
usb_kbd_deregister.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---

diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index 87f4125a9f..4c17b0d8ec 100644
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -8,6 +8,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
+#include <errno.h>
 #include <malloc.h>
 #include <stdio_dev.h>
 #include <asm/byteorder.h>
@@ -559,7 +560,11 @@ int drv_usb_kbd_init(void)
 int usb_kbd_deregister(void)
 {
 #ifdef CONFIG_SYS_STDIO_DEREGISTER
-	return stdio_deregister(DEVNAME);
+	int ret = stdio_deregister(DEVNAME);
+	if (ret && ret != -ENODEV)
+		return ret;
+
+	return 0;
 #else
 	return 1;
 #endif