stable inclusion
from linux-4.19.198
commit c7a13cbc42793ae74a2dff3fd7f543425830258f

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

[ Upstream commit a51b2fb9 ]

Return value of "pm_runtime_get_sync" API was neither captured nor checked.
Fixed it by capturing the return value and then checking for any warning.

Addresses-Coverity: "check_return"
Signed-off-by: NSrinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>