interconnect: qcom: qcs404: Walk the list safely on node removal (f39488ea) · Commits · 戴 / test

As we will remove items off the list using list_del(), we need to use the safe version of list_for_each_entry(). Fixes: ("interconnect: qcom: Add QCS404 interconnect provider driver") Reported-by:

Dmitry Osipenko <digetx@gmail.com> Reviewed-by:

Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:

Georgi Djakov <georgi.djakov@linaro.org> Cc: <stable@vger.kernel.org> # v5.4 Link: https://lore.kernel.org/r/20191212075332.16202-4-georgi.djakov@linaro.org Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/interconnect/qcom/qcs404.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -414,7 +414,7 @@ static int qnoc_probe(struct platform_device *pdev)
		struct icc_provider *provider;
		struct qcom_icc_node **qnodes;
		struct qcom_icc_provider *qp;
		struct icc_node *node;
		struct icc_node node, tmp;
		size_t num_nodes, i;
		int ret;

		@@ -494,7 +494,7 @@ static int qnoc_probe(struct platform_device *pdev)

		return 0;
		err:
		list_for_each_entry(node, &provider->nodes, node_list) {
		list_for_each_entry_safe(node, tmp, &provider->nodes, node_list) {
		icc_node_del(node);
		icc_node_destroy(node->id);
		}
		@@ -508,9 +508,9 @@ static int qnoc_remove(struct platform_device *pdev)
		{
		struct qcom_icc_provider *qp = platform_get_drvdata(pdev);
		struct icc_provider *provider = &qp->provider;
		struct icc_node *n;
		struct icc_node n, tmp;

		list_for_each_entry(n, &provider->nodes, node_list) {
		list_for_each_entry_safe(n, tmp, &provider->nodes, node_list) {
		icc_node_del(n);
		icc_node_destroy(n->id);
		}

Admin message