commit 96449581b3d57e3f1561cec82920a951664398b1
author Claudiu Beznea <claudiu.beznea@microchip.com> Tue Jan 19 13:26:45 2021 +0200
committer Eugen Hristev <eugen.hristev@microchip.com> Fri Jan 22 15:09:59 2021 +0200
tree ff56c3d9af9abb125502cd77373ed8c2a6e233a9
parent bb890f75d5217a3c5db0fa40acf35ee317ec1905

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>

drivers/net/macb.c

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 @@
 
 	if (tx_clk.dev) {
 		ret = clk_set_rate(&tx_clk, rate);
-		if (ret)
+		if (ret < 0)
 			return ret;
 	}
 #endif