diff options
| -rw-r--r-- | kernel/irq/matrix.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/irq/matrix.c b/kernel/irq/matrix.c index 6f8b1d171cdc..578596e41cb6 100644 --- a/kernel/irq/matrix.c +++ b/kernel/irq/matrix.c @@ -422,7 +422,9 @@ void irq_matrix_free(struct irq_matrix *m, unsigned int cpu, if (WARN_ON_ONCE(bit < m->alloc_start || bit >= m->alloc_end)) return; - clear_bit(bit, cm->alloc_map); + if (WARN_ON_ONCE(!test_and_clear_bit(bit, cm->alloc_map))) + return; + cm->allocated--; if(managed) cm->managed_allocated--; |