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net: qcom/emac: add missed clk_disable_unprepare in error path of emac_clks_phase1_init 

[ Upstream commit 50caa777a3 ]

Fix the missing clk_disable_unprepare() before return
from emac_clks_phase1_init() in the error handling case.

Fixes: b9b17debc6 ("net: emac: emac gigabit ethernet controller driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Acked-by: Timur Tabi <timur@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Wang Hai 2020-08-10 10:57:05 +08:00 committed by Greg Kroah-Hartman
parent 35b5e689ab
commit d09d6dca89
1 changed files with 14 additions and 3 deletions
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17
drivers/net/ethernet/qualcomm/emac/emac.c
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@ -485,13 +485,24 @@ static int emac_clks_phase1_init(struct platform_device *pdev,
ret = clk_prepare_enable(adpt->clk[EMAC_CLK_CFG_AHB]);
if (ret)
return ret;
goto disable_clk_axi;
ret = clk_set_rate(adpt->clk[EMAC_CLK_HIGH_SPEED], 19200000);
if (ret)
return ret;
goto disable_clk_cfg_ahb;
return clk_prepare_enable(adpt->clk[EMAC_CLK_HIGH_SPEED]);
ret = clk_prepare_enable(adpt->clk[EMAC_CLK_HIGH_SPEED]);
if (ret)
goto disable_clk_cfg_ahb;
return 0;
disable_clk_cfg_ahb:
clk_disable_unprepare(adpt->clk[EMAC_CLK_CFG_AHB]);
disable_clk_axi:
clk_disable_unprepare(adpt->clk[EMAC_CLK_AXI]);
return ret;
}
/* Enable clocks; needs emac_clks_phase1_init to be called before */