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mips/loongson_1b: install NULL handler is OK

This commit is contained in:
Grissiom 2014-08-18 15:22:16 +08:00
parent 1d928f7daf
commit 0ee101ccb0
1 changed files with 4 additions and 7 deletions
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11
libcpu/mips/loongson_1b/interrupt.c
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@ -96,7 +96,7 @@ void rt_hw_interrupt_umask(int vector)
* @param old_handler the old interrupt service routine
*/
rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
void *param, char *name)
void *param, char *name)
{
rt_isr_handler_t old_handler = RT_NULL;
@ -104,14 +104,11 @@ rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
{
old_handler = irq_handle_table[vector].handler;
if (handler != RT_NULL)
{
#ifdef RT_USING_INTERRUPT_INFO
rt_strncpy(irq_handle_table[vector].name, name, RT_NAME_MAX);
rt_strncpy(irq_handle_table[vector].name, name, RT_NAME_MAX);
#endif /* RT_USING_INTERRUPT_INFO */
irq_handle_table[vector].handler = handler;
irq_handle_table[vector].param = param;
}
irq_handle_table[vector].handler = handler;
irq_handle_table[vector].param = param;
}
return old_handler;