[PATCH] iommu: fsl_pamu: Replace NO_IRQ by 0

[Christophe Leroy]

NO_IRQ is used to check the return of irq_of_parse_and_map().

On some architecture NO_IRQ is 0, on other architectures it is -1.

irq_of_parse_and_map() returns 0 on error, independent of NO_IRQ.

So use 0 instead of using NO_IRQ.

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
---
 drivers/iommu/fsl_pamu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/fsl_pamu.c b/drivers/iommu/fsl_pamu.c
index 0d03f837a5d4..1b53d2da2c19 100644
--- a/drivers/iommu/fsl_pamu.c
+++ b/drivers/iommu/fsl_pamu.c
@@ -779,7 +779,7 @@ static int fsl_pamu_probe(struct platform_device *pdev)
 	of_get_address(dev->of_node, 0, &size, NULL);
 
 	irq = irq_of_parse_and_map(dev->of_node, 0);
-	if (irq == NO_IRQ) {
+	if (!irq) {
 		dev_warn(dev, "no interrupts listed in PAMU node\n");
 		goto error;
 	}
@@ -903,7 +903,7 @@ static int fsl_pamu_probe(struct platform_device *pdev)
 	return 0;
 
 error:
-	if (irq != NO_IRQ)
+	if (irq)
 		free_irq(irq, data);
 
 	kfree_sensitive(data);
-- 
2.37.1