[PATCH] net: broadcom: bcm4908enet: add platform_get_irq_byname error checking

[Yu Zhe]

The platform_get_irq_byname() function returns negative error codes on error,
check it.

Signed-off-by: Yu Zhe <yuzhe@xxxxxxxxxxxx>
---
 drivers/net/ethernet/broadcom/bcm4908_enet.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bcm4908_enet.c b/drivers/net/ethernet/broadcom/bcm4908_enet.c
index c131d8118489..d985056db6c2 100644
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -705,6 +705,8 @@ static int bcm4908_enet_probe(struct platform_device *pdev)
 		return netdev->irq;
 
 	enet->irq_tx = platform_get_irq_byname(pdev, "tx");
+	if (enet->irq_tx < 0)
+		return enet->irq_tx;
 
 	err = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
 	if (err)
-- 
2.11.0