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path: root/drivers/hwtracing/stm/policy.c
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-rw-r--r--drivers/hwtracing/stm/policy.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hwtracing/stm/policy.c b/drivers/hwtracing/stm/policy.c
index 4b9e44b227d8..4f932a419752 100644
--- a/drivers/hwtracing/stm/policy.c
+++ b/drivers/hwtracing/stm/policy.c
@@ -345,7 +345,11 @@ void stp_policy_unbind(struct stp_policy *policy)
stm->policy = NULL;
policy->stm = NULL;
+ /*
+ * Drop the reference on the protocol driver and lose the link.
+ */
stm_put_protocol(stm->pdrv);
+ stm->pdrv = NULL;
stm_put_device(stm);
}