net: hisilicon: fix handling platform_get_irq result

The function can return negative value.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index cc2d8b4b18e3e2a99ef303b76809545496089787..253f8ed0537a058778fd08b2c5a0747f53d7eca4 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -816,7 +816,7 @@ static int hip04_mac_probe(struct platform_device *pdev)
        struct net_device *ndev;
        struct hip04_priv *priv;
        struct resource *res;
-       unsigned int irq;
+       int irq;
        int ret;
 
        ndev = alloc_etherdev(sizeof(struct hip04_priv));