[PATCH] dmaengine: sirf: fix irq number error check

[Arnd Bergmann]

irq_of_parse_and_map() returns 0 on error, no NO_IRQ, so the
failure condition can never be met.

This changes the comparison to check for zero instead.

Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
 drivers/dma/sirf-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c
index a96e4a480de5..8f62edad51be 100644
--- a/drivers/dma/sirf-dma.c
+++ b/drivers/dma/sirf-dma.c
@@ -866,7 +866,7 @@ static int sirfsoc_dma_probe(struct platform_device *op)
        }
 
        sdma->irq = irq_of_parse_and_map(dn, 0);
-       if (sdma->irq == NO_IRQ) {
+       if (!sdma->irq) {
                dev_err(dev, "Error mapping IRQ!\n");
                return -EINVAL;
        }
-- 
2.9.0