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    Subject[PATCH 5.15 58/66] tpm: ibmvtpm: Correct the return value in tpm_ibmvtpm_probe()
    Date
    From: Xiu Jianfeng <xiujianfeng@huawei.com>

    commit d0dc1a7100f19121f6e7450f9cdda11926aa3838 upstream.

    Currently it returns zero when CRQ response timed out, it should return
    an error code instead.

    Fixes: d8d74ea3c002 ("tpm: ibmvtpm: Wait for buffer to be set before proceeding")
    Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
    Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
    Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
    Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/char/tpm/tpm_ibmvtpm.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/drivers/char/tpm/tpm_ibmvtpm.c
    +++ b/drivers/char/tpm/tpm_ibmvtpm.c
    @@ -681,6 +681,7 @@ static int tpm_ibmvtpm_probe(struct vio_
    if (!wait_event_timeout(ibmvtpm->crq_queue.wq,
    ibmvtpm->rtce_buf != NULL,
    HZ)) {
    + rc = -ENODEV;
    dev_err(dev, "CRQ response timed out\n");
    goto init_irq_cleanup;
    }

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