[PATCH 5.10 401/717] remoteproc: qcom: fix reference leak in adsp_start

Greg Kroah-Hartman
2020-12-28T14:52:52Z

From: Zhang Qilong <zhangqilong3@huawei.com>

[ Upstream commit aa37448f597c09844942da87d042fc6793f989c2 ]

pm_runtime_get_sync will increment pm usage counter even it
failed. Forgetting to pm_runtime_put_noidle will result in
reference leak in adsp_start, so we should fix it.

Fixes: dc160e4491222 ("remoteproc: qcom: Introduce Non-PAS ADSP PIL driver")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20201102143534.144484-1-zhangqilong3@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/remoteproc/qcom_q6v5_adsp.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index efb2c1aa80a3c..f0b7363b5b268 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -193,8 +193,10 @@ static int adsp_start(struct rproc *rproc)

dev_pm_genpd_set_performance_state(adsp->dev, INT_MAX);
ret = pm_runtime_get_sync(adsp->dev);
- if (ret)
+ if (ret) {
+ pm_runtime_put_noidle(adsp->dev);
goto disable_xo_clk;
+ }

ret = clk_bulk_prepare_enable(adsp->num_clks, adsp->clks);
if (ret) {
--
2.27.0