Merge branch 'icc-misc' into icc-next

* icc-misc
  interconnect: qcom: add COMPILE_TEST
  interconnect: qcom: simplify allocation
  interconnect: debugfs-client: add NULL check for platform_device_alloc
  interconnect: Fix use after free in icc_get() and of_icc_get_by_index()

Signed-off-by: Georgi Djakov <djakov@kernel.org>

drivers/interconnect/core.c

@@ -548,7 +548,7 @@ struct icc_path *of_icc_get_by_index(struct device *dev, int idx)
 	path->name = kasprintf(GFP_KERNEL, "%s-%s",
 			       src_data->node->name, dst_data->node->name);
 	if (!path->name) {
-		kfree(path);
+		icc_put(path);
 		path = ERR_PTR(-ENOMEM);
 	}
 
@@ -646,8 +646,9 @@ struct icc_path *icc_get(struct device *dev, const char *src, const char *dst)
 
 	path->name = kasprintf(GFP_KERNEL, "%s-%s", src_node->name, dst_node->name);
 	if (!path->name) {
-		kfree(path);
-		path = ERR_PTR(-ENOMEM);
+		mutex_unlock(&icc_lock);
+		icc_put(path);
+		return ERR_PTR(-ENOMEM);
 	}
 out:
 	mutex_unlock(&icc_lock);

drivers/interconnect/debugfs-client.c

@@ -142,6 +142,8 @@ int icc_debugfs_client_init(struct dentry *icc_dir)
 	int ret;
 
 	pdev = platform_device_alloc("icc-debugfs-client", PLATFORM_DEVID_NONE);
+	if (!pdev)
+		return -ENOMEM;
 
 	ret = platform_device_add(pdev);
 	if (ret) {

drivers/interconnect/qcom/Kconfig

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config INTERCONNECT_QCOM
 	tristate "Qualcomm Network-on-Chip interconnect drivers"
-	depends on ARCH_QCOM
+	depends on ARCH_QCOM || COMPILE_TEST
 	help
 	  Support for Qualcomm's Network-on-Chip interconnect hardware.
 

drivers/interconnect/qcom/icc-rpm.c

@@ -479,13 +479,11 @@ int qnoc_probe(struct platform_device *pdev)
 		cd_num = 0;
 	}
 
-	qp = devm_kzalloc(dev, sizeof(*qp), GFP_KERNEL);
+	qp = devm_kzalloc(dev, struct_size(qp, intf_clks, cd_num), GFP_KERNEL);
 	if (!qp)
 		return -ENOMEM;
 
-	qp->intf_clks = devm_kcalloc(dev, cd_num, sizeof(*qp->intf_clks), GFP_KERNEL);
-	if (!qp->intf_clks)
-		return -ENOMEM;
+	qp->num_intf_clks = cd_num;
 
 	if (desc->bus_clk_desc) {
 		qp->bus_clk_desc = devm_kzalloc(dev, sizeof(*qp->bus_clk_desc),
@@ -507,7 +505,6 @@ int qnoc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	data->num_nodes = num_nodes;
 
-	qp->num_intf_clks = cd_num;
 	for (i = 0; i < cd_num; i++)
 		qp->intf_clks[i].id = cds[i];
 

drivers/interconnect/qcom/icc-rpm.h

@@ -40,7 +40,6 @@ struct rpm_clk_resource {
 /**
  * struct qcom_icc_provider - Qualcomm specific interconnect provider
  * @provider: generic interconnect provider
- * @num_intf_clks: the total number of intf_clks clk_bulk_data entries
  * @type: the ICC provider type
  * @regmap: regmap for QoS registers read/write access
  * @qos_offset: offset to QoS registers
@@ -49,13 +48,13 @@ struct rpm_clk_resource {
  * @bus_clk_rate: bus clock rate in Hz
  * @bus_clk_desc: a pointer to a rpm_clk_resource description of bus clocks
  * @bus_clk: a pointer to a HLOS-owned bus clock
- * @intf_clks: a clk_bulk_data array of interface clocks
  * @keep_alive: whether to always keep a minimum vote on the bus clocks
  * @ignore_enxio: whether to ignore ENXIO errors (for MSM8974)
+ * @num_intf_clks: the total number of intf_clks clk_bulk_data entries
+ * @intf_clks: a clk_bulk_data array of interface clocks
  */
 struct qcom_icc_provider {
 	struct icc_provider provider;
-	int num_intf_clks;
 	enum qcom_icc_type type;
 	struct regmap *regmap;
 	unsigned int qos_offset;
@@ -64,9 +63,10 @@ struct qcom_icc_provider {
 	u32 bus_clk_rate[QCOM_SMD_RPM_STATE_NUM];
 	const struct rpm_clk_resource *bus_clk_desc;
 	struct clk *bus_clk;
-	struct clk_bulk_data *intf_clks;
 	bool keep_alive;
 	bool ignore_enxio;
+	int num_intf_clks;
+	struct clk_bulk_data intf_clks[] __counted_by(num_intf_clks);
 };
 
 /**