From: Yang Yingliang yangyingliang@huawei.com
stable inclusion from stable-v6.6.2 commit 0967f1d9f19cfc01380fa782399e541dd29ffeb4 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8IW7G
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 273f74a2e7d15a5c216a4a26b84b1563c7092c9d ]
Add missing clk_disable_unprepare() and clk_bulk_disable_unprepare() in the error path in qnoc_probe(). And when qcom_icc_qos_set() fails, it needs remove nodes and disable clks.
Fixes: 2e2113c8a64f ("interconnect: qcom: rpm: Handle interface clocks") Signed-off-by: Yang Yingliang yangyingliang@huawei.com Link: https://lore.kernel.org/r/20230803130521.959487-1-yangyingliang@huawei.com Signed-off-by: Georgi Djakov djakov@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/interconnect/qcom/icc-rpm.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c index 2c16917ba1fd..e76356f91125 100644 --- a/drivers/interconnect/qcom/icc-rpm.c +++ b/drivers/interconnect/qcom/icc-rpm.c @@ -497,7 +497,7 @@ int qnoc_probe(struct platform_device *pdev)
ret = devm_clk_bulk_get(dev, qp->num_intf_clks, qp->intf_clks); if (ret) - return ret; + goto err_disable_unprepare_clk;
provider = &qp->provider; provider->dev = dev; @@ -512,13 +512,15 @@ int qnoc_probe(struct platform_device *pdev) /* If this fails, bus accesses will crash the platform! */ ret = clk_bulk_prepare_enable(qp->num_intf_clks, qp->intf_clks); if (ret) - return ret; + goto err_disable_unprepare_clk;
for (i = 0; i < num_nodes; i++) { size_t j;
node = icc_node_create(qnodes[i]->id); if (IS_ERR(node)) { + clk_bulk_disable_unprepare(qp->num_intf_clks, + qp->intf_clks); ret = PTR_ERR(node); goto err_remove_nodes; } @@ -534,8 +536,11 @@ int qnoc_probe(struct platform_device *pdev) if (qnodes[i]->qos.ap_owned && qnodes[i]->qos.qos_mode != NOC_QOS_MODE_INVALID) { ret = qcom_icc_qos_set(node); - if (ret) - return ret; + if (ret) { + clk_bulk_disable_unprepare(qp->num_intf_clks, + qp->intf_clks); + goto err_remove_nodes; + } }
data->nodes[i] = node; @@ -563,6 +568,7 @@ int qnoc_probe(struct platform_device *pdev) icc_provider_deregister(provider); err_remove_nodes: icc_nodes_remove(provider); +err_disable_unprepare_clk: clk_disable_unprepare(qp->bus_clk);
return ret;