From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 2 Sep 2016 23:17:20 +0000 (+0200)
Subject: dmaengine: sirf: fix irq number error check
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=524c6e04f826cea8a34a27136d8f5925df9213ed;p=linux.git

dmaengine: sirf: fix irq number error check

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 <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c
index d8bc3f2a71db1..f5abe29e748f5 100644
--- a/drivers/dma/sirf-dma.c
+++ b/drivers/dma/sirf-dma.c
@@ -869,7 +869,7 @@ 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;
 	}