diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2022-05-21 10:34:25 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-05-22 21:47:13 +0100 |
| commit | 43252ed15f46658cec64edecfe610e40f6a12d85 (patch) | |
| tree | 9a52d0c6e23719c473b24d9e74056c14e0a193e7 /drivers | |
| parent | c12b95885ab2d318fdad9b395acd53df42fd7b0e (diff) | |
| download | linux-43252ed15f46658cec64edecfe610e40f6a12d85.tar.bz2 | |
net: fec: Do proper error checking for optional clks
An error code returned by devm_clk_get() might have other meanings than
"This clock doesn't exist". So use devm_clk_get_optional() and handle
all remaining errors as fatal.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 9f33ec838b52..9b31a9ce7b27 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -3866,17 +3866,21 @@ fec_probe(struct platform_device *pdev) fep->itr_clk_rate = clk_get_rate(fep->clk_ahb); /* enet_out is optional, depends on board */ - fep->clk_enet_out = devm_clk_get(&pdev->dev, "enet_out"); - if (IS_ERR(fep->clk_enet_out)) - fep->clk_enet_out = NULL; + fep->clk_enet_out = devm_clk_get_optional(&pdev->dev, "enet_out"); + if (IS_ERR(fep->clk_enet_out)) { + ret = PTR_ERR(fep->clk_enet_out); + goto failed_clk; + } fep->ptp_clk_on = false; mutex_init(&fep->ptp_clk_mutex); /* clk_ref is optional, depends on board */ - fep->clk_ref = devm_clk_get(&pdev->dev, "enet_clk_ref"); - if (IS_ERR(fep->clk_ref)) - fep->clk_ref = NULL; + fep->clk_ref = devm_clk_get_optional(&pdev->dev, "enet_clk_ref"); + if (IS_ERR(fep->clk_ref)) { + ret = PTR_ERR(fep->clk_ref); + goto failed_clk; + } fep->clk_ref_rate = clk_get_rate(fep->clk_ref); /* clk_2x_txclk is optional, depends on board */ |