[U-Boot] [PATCH] net: zynq_gem: Return 0 on success, not -ENOSYS

[Olliver Schinagl]

The .read_rom_hwaddr net_ops hook does not check the return value, which
is why it was never caught that we are currently returning 0 if the
read_rom_hwaddr function return -ENOSYS and -ENOSYS otherwise.

In this case we can simplify this by just returning the result of the
function.

Signed-off-by: Olliver Schinagl <oliver at schinagl.nl>
---
 drivers/net/zynq_gem.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 8b7c1be..04a3fd4 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -593,14 +593,12 @@ __weak int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
 
 static int zynq_gem_read_rom_mac(struct udevice *dev)
 {
-	int retval;
 	struct eth_pdata *pdata = dev_get_platdata(dev);
 
-	retval = zynq_board_read_rom_ethaddr(pdata->enetaddr);
-	if (retval == -ENOSYS)
-		retval = 0;
+	if (!dev)
+		return -ENOSYS;
 
-	return retval;
+	return zynq_board_read_rom_ethaddr(pdata->enetaddr);
 }
 
 static int zynq_gem_miiphy_read(struct mii_dev *bus, int addr,
-- 
2.10.2