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genirq/proc: Avoid uninitalized variable warning

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kernel/irq/proc.c: In function ‘show_irq_affinity’:
include/linux/cpumask.h:24:29: warning: ‘mask’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define cpumask_bits(maskp) ((maskp)->bits)

gcc is silly, but admittedly it can't know that this won't be called with
anything else than the enumerated constants.

Shut up the warning by creating a default clause.

Fixes: 6bc6d4abd22e ("genirq/proc: Use the the accessor to report the effective affinity
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2017-08-25 22:34:05 +02:00
parent 20c4d49c0f
commit b33394ba5c
1 changed files with 2 additions and 2 deletions
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4
kernel/irq/proc.c
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@ -63,9 +63,9 @@ static int show_irq_affinity(int type, struct seq_file *m)
#ifdef CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK
mask = irq_data_get_effective_affinity_mask(&desc->irq_data);
break;
#else
return -EINVAL;
#endif
default:
return -EINVAL;
}
switch (type) {