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net: dsa: fix value check in bcm_sf2_sw_probe()

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[ Upstream commit dadc5b86cc9459581f37fe755b431adc399ea393 ]

in bcm_sf2_sw_probe(), check the return value of clk_prepare_enable()
and return the error code if clk_prepare_enable() returns an
unexpected value.

Fixes: e9ec5c3bd2 ("net: dsa: bcm_sf2: request and handle clocks")
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20230726170506.16547-1-ruc_gongyuanjun@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yuanjun Gong
2023-07-27 01:05:06 +08:00
committed by Greg Kroah-Hartman
parent abb0172fa8
commit eb8031b7ce
1 changed files with 6 additions and 2 deletions
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8
drivers/net/dsa/bcm_sf2.c
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@@ -1301,7 +1301,9 @@ static int bcm_sf2_sw_probe(struct platform_device *pdev)
if (IS_ERR(priv->clk)) if (IS_ERR(priv->clk))
return PTR_ERR(priv->clk); return PTR_ERR(priv->clk);
clk_prepare_enable(priv->clk); ret = clk_prepare_enable(priv->clk);
if (ret)
return ret;
priv->clk_mdiv = devm_clk_get_optional(&pdev->dev, "sw_switch_mdiv"); priv->clk_mdiv = devm_clk_get_optional(&pdev->dev, "sw_switch_mdiv");
if (IS_ERR(priv->clk_mdiv)) { if (IS_ERR(priv->clk_mdiv)) {
@@ -1309,7 +1311,9 @@ static int bcm_sf2_sw_probe(struct platform_device *pdev)
goto out_clk; goto out_clk;
} }
clk_prepare_enable(priv->clk_mdiv); ret = clk_prepare_enable(priv->clk_mdiv);
if (ret)
goto out_clk;
ret = bcm_sf2_sw_rst(priv); ret = bcm_sf2_sw_rst(priv);
if (ret) { if (ret) {