[PATCH] net: axi_emac: Change return value to -EAGAIN if RX is not ready

[Maksim Kiselev <bigunclemax@gmail.com>]

If there is no incoming package than axiemac_recv will return -1 which
in turn leads to printing `eth_rx: recv() returned error -1` error
message in eth_rx function. But missing a package is not an fatal error,
so return -EAGAIN in that case would be more suitable.

Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
---
 drivers/net/xilinx_axi_emac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/xilinx_axi_emac.c b/drivers/net/xilinx_axi_emac.c
index 3e9919993d..39cb3cc260 100644
--- a/drivers/net/xilinx_axi_emac.c
+++ b/drivers/net/xilinx_axi_emac.c
@@ -748,7 +748,7 @@ static int axiemac_recv(struct udevice *dev, int flags, uchar **packetp)
 
 	/* Wait for an incoming packet */
 	if (!isrxready(priv))
-		return -1;
+		return -EAGAIN;
 
 	debug("axiemac: RX data ready\n");
 
-- 
2.39.2