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authorKangjie Lu2018-12-26 03:57:14 +0100
committerDavid S. Miller2018-12-28 01:20:44 +0100
commitf86a3b83833e7cfe558ca4d70b64ebc48903efec (patch)
tree35ac59cc154f9fe2b3ccb3cb47872e3681d0b484 /drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c
parentnet: (cpts) fix a missing check of clk_prepare (diff)
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net: stmicro: fix a missing check of clk_prepare
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@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c4
1 files changed, 3 insertions, 1 deletions
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;