[PATCH 05/10] net: ethernet: i825xx: Fix platform_get_irq's error checking

Arvind Yadav
2017-12-02T19:28:38Z

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>
---
drivers/net/ethernet/i825xx/sni_82596.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/i825xx/sni_82596.c b/drivers/net/ethernet/i825xx/sni_82596.c
index b2c04a7..a6d56f5 100644
--- a/drivers/net/ethernet/i825xx/sni_82596.c
+++ b/drivers/net/ethernet/i825xx/sni_82596.c
@@ -120,9 +120,10 @@ static int sni_82596_probe(struct platform_device *dev)
netdevice->dev_addr[5] = readb(eth_addr + 0x06);
iounmap(eth_addr);

- if (!netdevice->irq) {
+ if (netdevice->irq <= 0) {
printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
__FILE__, netdevice->base_addr);
+ retval = netdevice->irq ? netdevice->irq : -ENODEV;
goto probe_failed;
}

--
2.7.4