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    Subject[PATCH 4.4 02/33] PM / devfreq: Propagate error from devfreq_add_device()
    Date
    4.4-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Bjorn Andersson <bjorn.andersson@linaro.org>

    commit d1bf2d30728f310f72296b54f0651ecdb09cbb12 upstream.

    Propagate the error of devfreq_add_device() in devm_devfreq_add_device()
    rather than statically returning ENOMEM. This makes it slightly faster
    to pinpoint the cause of a returned error.

    Fixes: 8cd84092d35e ("PM / devfreq: Add resource-managed function for devfreq device")
    Cc: stable@vger.kernel.org
    Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
    Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
    Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/devfreq/devfreq.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/devfreq/devfreq.c
    +++ b/drivers/devfreq/devfreq.c
    @@ -583,7 +583,7 @@ struct devfreq *devm_devfreq_add_device(
    devfreq = devfreq_add_device(dev, profile, governor_name, data);
    if (IS_ERR(devfreq)) {
    devres_free(ptr);
    - return ERR_PTR(-ENOMEM);
    + return devfreq;
    }

    *ptr = devfreq;

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