[PATCH] net: stmicro: fix a missing check of clk_prepare
From: Kangjie Lu
Date: Tue Dec 25 2018 - 21:57:45 EST
clk_prepare() could fail, so let's check its status, and if it fails,
return its error code upstream.
Signed-off-by: Kangjie Lu <kjlu@xxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
index d07520fb969e..62ccbd47c1db 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
@@ -59,7 +59,9 @@ static int sun7i_gmac_init(struct platform_device *pdev, void *priv)
gmac->clk_enabled = 1;
} else {
clk_set_rate(gmac->tx_clk, SUN7I_GMAC_MII_RATE);
- clk_prepare(gmac->tx_clk);
+ ret = clk_prepare(gmac->tx_clk);
+ if (ret)
+ return ret;
}
return 0;
--
2.17.2 (Apple Git-113)