Messages in this thread Patch in this message | | | Date | Fri, 30 Jun 2017 02:55:03 -0500 | From | "Gustavo A. R. Silva" <> | Subject | [PATCH] dmaengine: zx: add check on platform_get_irq return value |
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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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