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soc: qcom: smem_state: Add refcounting for the 'state->of_node'

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[ Upstream commit 90681f53b9 ]

In qcom_smem_state_register() and qcom_smem_state_release(), we
should better use of_node_get() and of_node_put() for the reference
creation and destruction of 'device_node'.

Fixes: 9460ae2ff3 ("soc: qcom: Introduce common SMEM state machine code")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220721135217.1301039-2-windhl@126.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Liang He 2022-07-21 21:52:17 +08:00 committed by Greg Kroah-Hartman
parent ee7fc83ce0
commit 9e643ec900
1 changed files with 2 additions and 1 deletions
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3
drivers/soc/qcom/smem_state.c
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@ -136,6 +136,7 @@ static void qcom_smem_state_release(struct kref *ref)
struct qcom_smem_state *state = container_of(ref, struct qcom_smem_state, refcount);
list_del(&state->list);
of_node_put(state->of_node);
kfree(state);
}
@ -205,7 +206,7 @@ struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node,
kref_init(&state->refcount);
state->of_node = of_node;
state->of_node = of_node_get(of_node);
state->ops = *ops;
state->priv = priv;