From 39c6f2beb1b760275be46abcf30f7aef16841d98 Mon Sep 17 00:00:00 2001 From: Rayagonda Kokatanur Date: Tue, 17 Mar 2020 10:24:35 +0530 Subject: [PATCH] net: phy: mdio-mux-bcm-iproc: check clk_prepare_enable() return value [ Upstream commit 872307abbd0d9afd72171929806c2fa33dc34179 ] Check clk_prepare_enable() return value. Fixes: 2c7230446bc9 ("net: phy: Add pm support to Broadcom iProc mdio mux driver") Signed-off-by: Rayagonda Kokatanur Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/phy/mdio-mux-bcm-iproc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/mdio-mux-bcm-iproc.c b/drivers/net/phy/mdio-mux-bcm-iproc.c index c017486e9b86..575e0bd76193 100644 --- a/drivers/net/phy/mdio-mux-bcm-iproc.c +++ b/drivers/net/phy/mdio-mux-bcm-iproc.c @@ -301,8 +301,13 @@ static int mdio_mux_iproc_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct iproc_mdiomux_desc *md = platform_get_drvdata(pdev); + int rc; - clk_prepare_enable(md->core_clk); + rc = clk_prepare_enable(md->core_clk); + if (rc) { + dev_err(md->dev, "failed to enable core clk\n"); + return rc; + } mdio_mux_iproc_config(md); return 0;