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Merge pull request #3998 from thread-liu/main

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[update] check whether it's a same console device.
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Bernard Xiong 2020-11-03 08:19:47 +08:00 committed by GitHub
commit cce66c4bce
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1 changed files with 5 additions and 1 deletions
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6
src/kservice.c
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@ -1116,7 +1116,7 @@ RTM_EXPORT(rt_console_get_device);
*
* @param name the name of new console device
*
* @return the old console device handler
* @return the old console device handler on successful, or RT_NULL on failure.
*/
rt_device_t rt_console_set_device(const char *name)
{
@ -1127,6 +1127,10 @@ rt_device_t rt_console_set_device(const char *name)
/* find new console device */
new_device = rt_device_find(name);
/* check whether it's a same device */
if (new_device == old_device) return RT_NULL;
if (new_device != RT_NULL)
{
if (_console_device != RT_NULL)