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authorIngo Molnar <mingo@elte.hu>2009-02-17 20:43:37 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-17 20:44:47 +0100
commitf17c75453b2d195eba0a90d9f16a3ba88c85b3b4 (patch)
tree2727a5965c34c11b11257db56fe87c432cd395ef /kernel/irq/manage.c
parent8316e38100c70cd1443ac90074eccdd033aa218d (diff)
irq: name 'p' variables a bit better
'p' stands for pointer - make it clear in setup_irq() and free_irq() what kind of pointer it is. Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/irq/manage.c')
-rw-r--r--kernel/irq/manage.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index de5a765e88ab..c589305210d7 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -399,7 +399,7 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned int irq,
static int
__setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
{
- struct irqaction *old, **p;
+ struct irqaction *old, **old_ptr;
const char *old_name = NULL;
unsigned long flags;
int shared = 0;
@@ -431,8 +431,8 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
* The following block of code has to be executed atomically
*/
spin_lock_irqsave(&desc->lock, flags);
- p = &desc->action;
- old = *p;
+ old_ptr = &desc->action;
+ old = *old_ptr;
if (old) {
/*
* Can't share interrupts unless both agree to and are
@@ -455,8 +455,8 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
/* add new interrupt at end of irq queue */
do {
- p = &old->next;
- old = *p;
+ old_ptr = &old->next;
+ old = *old_ptr;
} while (old);
shared = 1;
}
@@ -507,7 +507,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
(int)(new->flags & IRQF_TRIGGER_MASK));
}
- *p = new;
+ *old_ptr = new;
/* Reset broken irq detection when installing new handler */
desc->irq_count = 0;
@@ -575,7 +575,7 @@ int setup_irq(unsigned int irq, struct irqaction *act)
void free_irq(unsigned int irq, void *dev_id)
{
struct irq_desc *desc = irq_to_desc(irq);
- struct irqaction *action, **p;
+ struct irqaction *action, **action_ptr;
unsigned long flags;
WARN(in_interrupt(), "Trying to free IRQ %d from IRQ context!\n", irq);
@@ -589,9 +589,9 @@ void free_irq(unsigned int irq, void *dev_id)
* There can be multiple actions per IRQ descriptor, find the right
* one based on the dev_id:
*/
- p = &desc->action;
+ action_ptr = &desc->action;
for (;;) {
- action = *p;
+ action = *action_ptr;
if (!action) {
WARN(1, "Trying to free already-free IRQ %d\n", irq);
@@ -602,11 +602,11 @@ void free_irq(unsigned int irq, void *dev_id)
if (action->dev_id == dev_id)
break;
- p = &action->next;
+ action_ptr = &action->next;
}
/* Found it - now remove it from the list of entries: */
- *p = action->next;
+ *action_ptr = action->next;
/* Currently used only by UML, might disappear one day: */
#ifdef CONFIG_IRQ_RELEASE_METHOD