MIPS: ralink: Fix platform_get_irq's error checking

The platform_get_irq() function returns negative if an error occurs.
zero or positive number on success. platform_get_irq() error checking
for zero is not correct.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Cc: john@phrozen.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17783/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/ralink/timer.c b/arch/mips/ralink/timer.c
index d4469b20d176abb675e168d39e7b02bd511533ea..4f46a4509f79c4b417facbb86006ce15eef9dee1 100644 (file)
--- a/arch/mips/ralink/timer.c
+++ b/arch/mips/ralink/timer.c
@@ -109,9 +109,9 @@ static int rt_timer_probe(struct platform_device *pdev)
        }
 
        rt->irq = platform_get_irq(pdev, 0);
-       if (!rt->irq) {
+       if (rt->irq < 0) {
                dev_err(&pdev->dev, "failed to load irq\n");
-               return -ENOENT;
+               return rt->irq;
        }
 
        rt->membase = devm_ioremap_resource(&pdev->dev, res);