lkml.org 
[lkml]   [2019]   [Apr]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4.4 056/131] coresight: release reference taken by bus_find_device()
    Date
    4.4-stable review patch.  If anyone has any objections, please let me know.

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

    [ Upstream commit f2dfab3568fc32afeac8b698481e80e7ab2dc658 ]

    The reference count taken by function bus_find_device() needs
    to be released if a child device is found, something this patch
    is adding.

    Reported-by: Rabin Vincent <rabin@rab.in>
    Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/hwtracing/coresight/coresight.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
    index a7d1edbf3340..5e2a2a5ad601 100644
    --- a/drivers/hwtracing/coresight/coresight.c
    +++ b/drivers/hwtracing/coresight/coresight.c
    @@ -573,6 +573,8 @@ static void coresight_fixup_device_conns(struct coresight_device *csdev)

    if (dev) {
    conn->child_dev = to_coresight_device(dev);
    + /* and put reference from 'bus_find_device()' */
    + put_device(dev);
    } else {
    csdev->orphan = true;
    conn->child_dev = NULL;
    --
    2.19.1


    \
     
     \ /
      Last update: 2019-04-01 19:49    [W:4.058 / U:0.128 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site