1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 5a86da97a70b..7af78df241f2 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -397,7 +397,8 @@ static irqreturn_t pmu_handle_irq(int irq_num, void *dev)
                 hw_counter = &event->hw;
 
                 /* Did this counter overflow? */
-                if (!pmu_read_register(idx, CCI_PMU_OVRFLW) & CCI_PMU_OVRFLW_FLAG)
+                if (!(pmu_read_register(idx, CCI_PMU_OVRFLW) &
+                      CCI_PMU_OVRFLW_FLAG))
                         continue;
 
                 pmu_write_register(CCI_PMU_OVRFLW_FLAG, idx, CCI_PMU_OVRFLW);