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    Subject[PATCH 5.16 041/121] net: ethernet: ti: cpts: Handle error for clk_enable
    Date
    From: Jiasheng Jiang <jiasheng@iscas.ac.cn>

    [ Upstream commit 6babfc6e6fab068018c36e8f6605184b8c0b349d ]

    As the potential failure of the clk_enable(),
    it should be better to check it and return error
    if fails.

    Fixes: 8a2c9a5ab4b9 ("net: ethernet: ti: cpts: rework initialization/deinitialization")
    Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/ethernet/ti/cpts.c | 4 +++-
    1 file changed, 3 insertions(+), 1 deletion(-)

    diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c
    index dc70a6bfaa6a..92ca739fac01 100644
    --- a/drivers/net/ethernet/ti/cpts.c
    +++ b/drivers/net/ethernet/ti/cpts.c
    @@ -568,7 +568,9 @@ int cpts_register(struct cpts *cpts)
    for (i = 0; i < CPTS_MAX_EVENTS; i++)
    list_add(&cpts->pool_data[i].list, &cpts->pool);

    - clk_enable(cpts->refclk);
    + err = clk_enable(cpts->refclk);
    + if (err)
    + return err;

    cpts_write32(cpts, CPTS_EN, control);
    cpts_write32(cpts, TS_PEND_EN, int_enable);
    --
    2.34.1


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