On Wed 01 Jul 12:59 PDT 2020, Sibi Sankar wrote:
The Protection Domains (PD) have a mechanism to keep its resources enabled until the PD down indication is acked. Reorder the PD state indication ack so that clients get to release the relevant resources before the PD goes down.
Fixes: fbe639b44a82 ("soc: qcom: Introduce Protection Domain Restart helpers") Reported-by: Rishabh Bhatnagar rishabhb@codeaurora.org Signed-off-by: Sibi Sankar sibis@codeaurora.org
Reviewed-by: Bjorn Andersson bjorn.andersson@linaro.org
I couldn't find the previous patch on patchworks. Resending the patch since it would need to land on stable trees as well
drivers/soc/qcom/pdr_interface.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/qcom/pdr_interface.c b/drivers/soc/qcom/pdr_interface.c index a90d707da6894..088dc99f77f3f 100644 --- a/drivers/soc/qcom/pdr_interface.c +++ b/drivers/soc/qcom/pdr_interface.c @@ -279,13 +279,15 @@ static void pdr_indack_work(struct work_struct *work) list_for_each_entry_safe(ind, tmp, &pdr->indack_list, node) { pds = ind->pds;
pdr_send_indack_msg(pdr, pds, ind->transaction_id);mutex_lock(&pdr->status_lock); pds->state = ind->curr_state; pdr->status(pds->state, pds->service_path, pdr->priv); mutex_unlock(&pdr->status_lock);
/* Ack the indication after clients release the PD resources */pdr_send_indack_msg(pdr, pds, ind->transaction_id);- mutex_lock(&pdr->list_lock); list_del(&ind->node); mutex_unlock(&pdr->list_lock);
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