4.4-stable review patch. If anyone has any objections, please let me know.
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[ 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;