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authorZhang Qilong <zhangqilong3@huawei.com>2020-11-02 22:35:54 +0800
committerBjorn Andersson <bjorn.andersson@linaro.org>2020-12-10 13:23:15 -0600
commitc0a6e5ee1ecfe4c3a5799cfd30820748eff5dfab (patch)
treeb95745a3dee320eb11627b1d0d9553d067569edb /drivers/remoteproc
parentaa37448f597c09844942da87d042fc6793f989c2 (diff)
downloadlinux-c0a6e5ee1ecfe4c3a5799cfd30820748eff5dfab.tar.bz2
remoteproc: qcom: pas: fix error handling in adsp_pds_enable
If the pm_runtime_get_sync failed in adsp_pds_enable when loop (i), The unroll_pd_votes will start from (i - 1), and it will resulted in following problems: 1) pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to pm_runtime_put_noidle will result in reference leak. 2) Have not reset pds[i] performance state. Then we fix it. Fixes: 17ee2fb4e8567 ("remoteproc: qcom: pas: Vote for active/proxy power domains") Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20201102143554.144707-1-zhangqilong3@huawei.com Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/qcom_q6v5_pas.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 2df46af592d0..ee586226e438 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -99,8 +99,11 @@ static int adsp_pds_enable(struct qcom_adsp *adsp, struct device **pds,
for (i = 0; i < pd_count; i++) {
dev_pm_genpd_set_performance_state(pds[i], INT_MAX);
ret = pm_runtime_get_sync(pds[i]);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_noidle(pds[i]);
+ dev_pm_genpd_set_performance_state(pds[i], 0);
goto unroll_pd_votes;
+ }
}
return 0;