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Subject[PATCH] dmaengine: zx: add check on platform_get_irq return value
Check return value from call to platform_get_irq(),
so in case of failure print error message and propagate
the return value.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
---
drivers/dma/zx_dma.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/dma/zx_dma.c b/drivers/dma/zx_dma.c
index 2bb6953..26196de 100644
--- a/drivers/dma/zx_dma.c
+++ b/drivers/dma/zx_dma.c
@@ -786,6 +786,11 @@ static int zx_dma_probe(struct platform_device *op)
}

d->irq = platform_get_irq(op, 0);
+ if (d->irq < 0) {
+ dev_err(&op->dev, "failed to get IRQ: %d\n", d->irq);
+ return d->irq;
+ }
+
ret = devm_request_irq(&op->dev, d->irq, zx_dma_int_handler,
0, DRIVER_NAME, d);
if (ret)
--
2.5.0
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