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coresight: release reference taken by 'bus_find_device()'

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[ Upstream commit f2dfab3568 ]

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>
This commit is contained in:
Mathieu Poirier
2016-02-02 14:13:58 -07:00
committed by Greg Kroah-Hartman
parent 3e2070abcc
commit a2828b9445
1 changed files with 2 additions and 0 deletions
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2
drivers/hwtracing/coresight/coresight.c
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@@ -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;