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    Subject[PATCH 5.9 211/757] wilc1000: Fix memleak in wilc_bus_probe
    Date
    From: Dinghao Liu <dinghao.liu@zju.edu.cn>

    [ Upstream commit 9a19a939abfa7d949f584a7ad872e683473fdc14 ]

    When devm_clk_get() returns -EPROBE_DEFER, spi_priv
    should be freed just like when wilc_cfg80211_init()
    fails.

    Fixes: 854d66df74aed ("staging: wilc1000: look for rtc_clk clock in spi mode")
    Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
    Acked-by: Ajay Singh <ajay.kathat@microchip.com>
    Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
    Link: https://lore.kernel.org/r/20200820055256.24333-1-dinghao.liu@zju.edu.cn
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/wireless/microchip/wilc1000/spi.c | 5 +++--
    1 file changed, 3 insertions(+), 2 deletions(-)

    diff --git a/drivers/net/wireless/microchip/wilc1000/spi.c b/drivers/net/wireless/microchip/wilc1000/spi.c
    index 3f19e3f38a397..a18dac0aa6b67 100644
    --- a/drivers/net/wireless/microchip/wilc1000/spi.c
    +++ b/drivers/net/wireless/microchip/wilc1000/spi.c
    @@ -112,9 +112,10 @@ static int wilc_bus_probe(struct spi_device *spi)
    wilc->dev_irq_num = spi->irq;

    wilc->rtc_clk = devm_clk_get(&spi->dev, "rtc_clk");
    - if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER)
    + if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER) {
    + kfree(spi_priv);
    return -EPROBE_DEFER;
    - else if (!IS_ERR(wilc->rtc_clk))
    + } else if (!IS_ERR(wilc->rtc_clk))
    clk_prepare_enable(wilc->rtc_clk);

    return 0;
    --
    2.25.1


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