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genirq: Remove redundant NULL pointer check in __free_irq() 

The NULL pointer check in __free_irq() triggers a 'dereference before NULL
pointer check' warning in static code analysis. It turns out that the check
is redundant because all callers have a NULL pointer check already.

Remove it.

Signed-off-by: RAGHU Halharvi <raghuhack78@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20180717102009.7708-1-raghuhack78@gmail.com
hifive-unleashed-5.1
RAGHU Halharvi 2018-07-17 15:50:09 +05:30 committed by Thomas Gleixner
parent 519cc8652b
commit d91cfeb0aa
1 changed files with 0 additions and 3 deletions
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3
kernel/irq/manage.c
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@ -1570,9 +1570,6 @@ static struct irqaction *__free_irq(struct irq_desc *desc, void *dev_id)
WARN(in_interrupt(), "Trying to free IRQ %d from IRQ context!\n", irq);
if (!desc)
return NULL;
mutex_lock(&desc->request_mutex);
chip_bus_lock(desc);
raw_spin_lock_irqsave(&desc->lock, flags);