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

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

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Hans de Goede 2014-09-20 16:54:34 +02:00 committed by Marek Vasut
parent 9b2393812e
commit 0ea09dfe87
1 changed files with 6 additions and 1 deletions
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7
common/usb_kbd.c
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@ -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