Messages in this thread Patch in this message | | | From | Kangjie Lu <> | Subject | [PATCH] net: stmicro: fix a missing check of clk_prepare | Date | Tue, 25 Dec 2018 20:57:14 -0600 |
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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> --- 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)
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