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sched/irq: Every function must have exactly one entry point and one exit point

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According to MISRA C-2004 Rule 14.7, Every function must have exactly one entry point and one exit point.

Signed-off-by: pangzhen1 <pangzhen1@xiaomi.com>
This commit is contained in:
pangzhen1
2025-08-25 21:59:10 +08:00
committed by GUIDINGLI
parent f17b82bd65
commit 5a1a7dc38e
1 changed files with 41 additions and 32 deletions
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sched/irq/irq_chain.c
+41 -32
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@@ -128,19 +128,23 @@ void irqchain_initialize(void)
bool is_irqchain(int ndx, xcpt_t isr)
{
bool ret;
if (g_irqvector[ndx].handler == irq_unexpected_isr ||
g_irqvector[ndx].handler == NULL)
{
return false;
ret = false;
}
else if (g_irqvector[ndx].handler == irqchain_dispatch)
{
return true;
ret = true;
}
else
{
return isr != irq_unexpected_isr;
ret = isr != irq_unexpected_isr;
}
return ret;
}
int irqchain_attach(int ndx, xcpt_t isr, FAR void *arg)
@@ -148,6 +152,7 @@ int irqchain_attach(int ndx, xcpt_t isr, FAR void *arg)
FAR struct irqchain_s *node;
FAR struct irqchain_s *curr;
irqstate_t flags;
int ret = 0;
flags = spin_lock_irqsave(&g_irqchainlock);
if (isr != irq_unexpected_isr)
@@ -156,39 +161,43 @@ int irqchain_attach(int ndx, xcpt_t isr, FAR void *arg)
{
if (sq_count(&g_irqchainfreelist) < 2u)
{
spin_unlock_irqrestore(&g_irqchainlock, flags);
return -ENOMEM;
ret = -ENOMEM;
}
else
{
node = (FAR struct irqchain_s *)
sq_remfirst(&g_irqchainfreelist);
DEBUGASSERT(node != NULL);
node = (FAR struct irqchain_s *)sq_remfirst(&g_irqchainfreelist);
DEBUGASSERT(node != NULL);
node->handler = g_irqvector[ndx].handler;
node->arg = g_irqvector[ndx].arg;
node->next = NULL;
node->handler = g_irqvector[ndx].handler;
node->arg = g_irqvector[ndx].arg;
node->next = NULL;
g_irqvector[ndx].handler = irqchain_dispatch;
g_irqvector[ndx].arg = node;
g_irqvector[ndx].handler = irqchain_dispatch;
g_irqvector[ndx].arg = node;
node = (FAR struct irqchain_s *)
sq_remfirst(&g_irqchainfreelist);
if (node == NULL)
{
ret = -ENOMEM;
}
else
{
node->handler = isr;
node->arg = arg;
node->next = NULL;
curr = g_irqvector[ndx].arg;
while (curr->next != NULL)
{
curr = curr->next;
}
curr->next = node;
}
}
}
node = (FAR struct irqchain_s *)sq_remfirst(&g_irqchainfreelist);
if (node == NULL)
{
spin_unlock_irqrestore(&g_irqchainlock, flags);
return -ENOMEM;
}
node->handler = isr;
node->arg = arg;
node->next = NULL;
curr = g_irqvector[ndx].arg;
while (curr->next != NULL)
{
curr = curr->next;
}
curr->next = node;
}
else
{
@@ -196,7 +205,7 @@ int irqchain_attach(int ndx, xcpt_t isr, FAR void *arg)
}
spin_unlock_irqrestore(&g_irqchainlock, flags);
return OK;
return ret;
}
int irqchain_detach(int irq, xcpt_t isr, FAR void *arg)