1 files changed, 1 insertions, 1 deletions
diff --git a/hw/arm/pxa2xx_gpio.c b/hw/arm/pxa2xx_gpio.c
index 354ccf1..c89c804 100644
--- a/hw/arm/pxa2xx_gpio.c
+++ b/hw/arm/pxa2xx_gpio.c
@@ -137,7 +137,7 @@ static void pxa2xx_gpio_handler_update(PXA2xxGPIOInfo *s) {
         level = s->olevel[i] & s->dir[i];
 
         for (diff = s->prev_level[i] ^ level; diff; diff ^= 1 << bit) {
-            bit = ffs(diff) - 1;
+            bit = ctz32(diff);
             line = bit + 32 * i;
             qemu_set_irq(s->handler[line], (level >> bit) & 1);
         }