X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=kernel%2Firq%2Fgeneric-chip.c;h=452d6f2ba21d9ae0b2b6cd1a966721b325ec9e23;hb=f6398600f92b738813e34a1b576ac1cb895e43a1;hp=10e663ab1f4aa0c88bc120660d824e50c099f9a2;hpb=239dab4636f7f5f971ac39b5ca84254cff112cac;p=firefly-linux-kernel-4.4.55.git

diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c
index 10e663ab1f4a..452d6f2ba21d 100644
--- a/kernel/irq/generic-chip.c
+++ b/kernel/irq/generic-chip.c
@@ -275,7 +275,7 @@ int irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip,
 	if (d->gc)
 		return -EBUSY;
 
-	numchips = d->revmap_size / irqs_per_chip;
+	numchips = DIV_ROUND_UP(d->revmap_size, irqs_per_chip);
 	if (!numchips)
 		return -EINVAL;