| From 31d9b0996efb924e1c2a52120f33e9c2621154a1 Mon Sep 17 00:00:00 2001 |
| From: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> |
| Date: Tue, 17 Mar 2020 10:24:35 +0530 |
| Subject: [PATCH] net: phy: mdio-mux-bcm-iproc: check clk_prepare_enable() |
| return value |
| |
| commit 872307abbd0d9afd72171929806c2fa33dc34179 upstream. |
| |
| Check clk_prepare_enable() return value. |
| |
| Fixes: 2c7230446bc9 ("net: phy: Add pm support to Broadcom iProc mdio mux driver") |
| Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> |
| Reviewed-by: Andrew Lunn <andrew@lunn.ch> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/drivers/net/phy/mdio-mux-bcm-iproc.c b/drivers/net/phy/mdio-mux-bcm-iproc.c |
| index 88d409e48c1f..aad6809ebe39 100644 |
| --- a/drivers/net/phy/mdio-mux-bcm-iproc.c |
| +++ b/drivers/net/phy/mdio-mux-bcm-iproc.c |
| @@ -288,8 +288,13 @@ static int mdio_mux_iproc_suspend(struct device *dev) |
| static int mdio_mux_iproc_resume(struct device *dev) |
| { |
| struct iproc_mdiomux_desc *md = dev_get_drvdata(dev); |
| + 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; |
| -- |
| 2.7.4 |
| |
