Take the client_lock before traversing the clients list at the
pmic_glink_state_notify_clients() function. This is required to keep the
list traversal safe from concurrent modification.
Fixes: 58ef4ece1e41 ("soc: qcom: pmic_glink: Introduce base PMIC GLINK driver")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/soc/qcom/pmic_glink.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c
index f913e9bd57ed..c999358771b3 100644
--- a/drivers/soc/qcom/pmic_glink.c
+++ b/drivers/soc/qcom/pmic_glink.c
@@ -168,8 +168,10 @@ static void pmic_glink_state_notify_clients(struct pmic_glink *pg)
}
if (new_state != pg->client_state) {
+ mutex_lock(&pg->client_lock);
list_for_each_entry(client, &pg->clients, node)
client->pdr_notify(client->priv, new_state);
+ mutex_unlock(&pg->client_lock);
pg->client_state = new_state;
}
}
--
2.39.2
