[PATCH 2/2] arch: mips: lantiq: use the real EXIN count

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We runtime load the available external interrupts into an array and store
the number inside exin_avail. Some of the code however uses MAX_EIU for
looping over the array which may partially be 0. This is a cosmetic fix as
the existing code works as is. It is just nicer to only loop over the array
elements that were actually populated during probe.

Signed-off-by: John Crispin <john@xxxxxxxxxxx>
---
 arch/mips/lantiq/irq.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 6746d7f..0d39270 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -125,7 +125,7 @@ static int ltq_eiu_settype(struct irq_data *d, unsigned int type)
 {
 	int i;
 
-	for (i = 0; i < MAX_EIU; i++) {
+	for (i = 0; i < exin_avail; i++) {
 		if (d->hwirq == ltq_eiu_irq[i]) {
 			int val = 0;
 			int edge = 0;
@@ -173,7 +173,7 @@ static unsigned int ltq_startup_eiu_irq(struct irq_data *d)
 	int i;
 
 	ltq_enable_irq(d);
-	for (i = 0; i < MAX_EIU; i++) {
+	for (i = 0; i < exin_avail; i++) {
 		if (d->hwirq == ltq_eiu_irq[i]) {
 			/* by default we are low level triggered */
 			ltq_eiu_settype(d, IRQF_TRIGGER_LOW);
@@ -195,7 +195,7 @@ static void ltq_shutdown_eiu_irq(struct irq_data *d)
 	int i;
 
 	ltq_disable_irq(d);
-	for (i = 0; i < MAX_EIU; i++) {
+	for (i = 0; i < exin_avail; i++) {
 		if (d->hwirq == ltq_eiu_irq[i]) {
 			/* disable */
 			ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) & ~BIT(i),
-- 
1.7.10.4





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