From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Tue, 19 Jan 2021 11:26:45 +0000 (+0200)
Subject: net: macb: check clk_set_rate return value to be negative
X-Git-Tag: v2021.10~351^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=96449581b3d57e3f1561cec82920a951664398b1;p=platform%2Fkernel%2Fu-boot.git

net: macb: check clk_set_rate return value to be negative

clk_set_rate() returns the set rate in case of success and a
negative number in case of failure. Consider failure only the
negative numbers.

Fixes: 3ef64444de157 ("dm: net: macb: Implement link speed change callback")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---

diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 097d578..80ed58d 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -631,7 +631,7 @@ int __weak macb_linkspd_cb(struct udevice *dev, unsigned int speed)
 
 	if (tx_clk.dev) {
 		ret = clk_set_rate(&tx_clk, rate);
-		if (ret)
+		if (ret < 0)
 			return ret;
 	}
 #endif