Power management fixes for 6.1-rc2

- Fix module loading in the Tegra124 cpufreq driver (Jon Hunter).
 
  - Fix memory leak and update to read-only region in the qcom
    cpufreq driver (Fabien Parent).
 
  - Miscellaneous minor cleanups to cpufreq drivers (Fabien Parent,
    Yang Yingliang).
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Merge tag 'pm-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix some issues and clean up code in ARM cpufreq drivers.

  Specifics:

   - Fix module loading in the Tegra124 cpufreq driver (Jon Hunter)

   - Fix memory leak and update to read-only region in the qcom cpufreq
     driver (Fabien Parent)

   - Miscellaneous minor cleanups to cpufreq drivers (Fabien Parent,
     Yang Yingliang)"

* tag 'pm-6.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: sun50i: Switch to use dev_err_probe() helper
  cpufreq: qcom-nvmem: Switch to use dev_err_probe() helper
  cpufreq: imx6q: Switch to use dev_err_probe() helper
  cpufreq: dt: Switch to use dev_err_probe() helper
  cpufreq: qcom: remove unused parameter in function definition
  cpufreq: qcom: fix writes in read-only memory region
  cpufreq: qcom: fix memory leak in error path
  cpufreq: tegra194: Fix module loading

drivers/cpufreq/cpufreq-dt.c

@@ -222,10 +222,8 @@ static int dt_cpufreq_early_init(struct device *dev, int cpu)
 	if (reg_name[0]) {
 		priv->opp_token = dev_pm_opp_set_regulators(cpu_dev, reg_name);
 		if (priv->opp_token < 0) {
-			ret = priv->opp_token;
-			if (ret != -EPROBE_DEFER)
-				dev_err(cpu_dev, "failed to set regulators: %d\n",
-					ret);
+			ret = dev_err_probe(cpu_dev, priv->opp_token,
+					    "failed to set regulators\n");
 			goto free_cpumask;
 		}
 	}

drivers/cpufreq/imx6q-cpufreq.c

@@ -396,9 +396,7 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
 		ret = imx6q_opp_check_speed_grading(cpu_dev);
 	}
 	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(cpu_dev, "failed to read ocotp: %d\n",
-				ret);
+		dev_err_probe(cpu_dev, ret, "failed to read ocotp\n");
 		goto out_free_opp;
 	}
 

drivers/cpufreq/qcom-cpufreq-nvmem.c

@@ -64,7 +64,7 @@ static struct platform_device *cpufreq_dt_pdev, *cpufreq_pdev;
 
 static void get_krait_bin_format_a(struct device *cpu_dev,
 					  int *speed, int *pvs, int *pvs_ver,
-					  struct nvmem_cell *pvs_nvmem, u8 *buf)
+					  u8 *buf)
 {
 	u32 pte_efuse;
 
@@ -95,7 +95,7 @@ static void get_krait_bin_format_a(struct device *cpu_dev,
 
 static void get_krait_bin_format_b(struct device *cpu_dev,
 					  int *speed, int *pvs, int *pvs_ver,
-					  struct nvmem_cell *pvs_nvmem, u8 *buf)
+					  u8 *buf)
 {
 	u32 pte_efuse, redundant_sel;
 
@@ -213,6 +213,7 @@ static int qcom_cpufreq_krait_name_version(struct device *cpu_dev,
 	int speed = 0, pvs = 0, pvs_ver = 0;
 	u8 *speedbin;
 	size_t len;
+	int ret = 0;
 
 	speedbin = nvmem_cell_read(speedbin_nvmem, &len);
 
@@ -222,15 +223,16 @@ static int qcom_cpufreq_krait_name_version(struct device *cpu_dev,
 	switch (len) {
 	case 4:
 		get_krait_bin_format_a(cpu_dev, &speed, &pvs, &pvs_ver,
-				       speedbin_nvmem, speedbin);
+				       speedbin);
 		break;
 	case 8:
 		get_krait_bin_format_b(cpu_dev, &speed, &pvs, &pvs_ver,
-				       speedbin_nvmem, speedbin);
+				       speedbin);
 		break;
 	default:
 		dev_err(cpu_dev, "Unable to read nvmem data. Defaulting to 0!\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto len_error;
 	}
 
 	snprintf(*pvs_name, sizeof("speedXX-pvsXX-vXX"), "speed%d-pvs%d-v%d",
@@ -238,8 +240,9 @@ static int qcom_cpufreq_krait_name_version(struct device *cpu_dev,
 
 	drv->versions = (1 << speed);
 
+len_error:
 	kfree(speedbin);
-	return 0;
+	return ret;
 }
 
 static const struct qcom_cpufreq_match_data match_data_kryo = {
@@ -262,7 +265,8 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
 	struct nvmem_cell *speedbin_nvmem;
 	struct device_node *np;
 	struct device *cpu_dev;
-	char *pvs_name = "speedXX-pvsXX-vXX";
+	char pvs_name_buffer[] = "speedXX-pvsXX-vXX";
+	char *pvs_name = pvs_name_buffer;
 	unsigned cpu;
 	const struct of_device_id *match;
 	int ret;
@@ -295,11 +299,8 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
 	if (drv->data->get_version) {
 		speedbin_nvmem = of_nvmem_cell_get(np, NULL);
 		if (IS_ERR(speedbin_nvmem)) {
-			if (PTR_ERR(speedbin_nvmem) != -EPROBE_DEFER)
-				dev_err(cpu_dev,
-					"Could not get nvmem cell: %ld\n",
-					PTR_ERR(speedbin_nvmem));
-			ret = PTR_ERR(speedbin_nvmem);
+			ret = dev_err_probe(cpu_dev, PTR_ERR(speedbin_nvmem),
+					    "Could not get nvmem cell\n");
 			goto free_drv;
 		}
 

drivers/cpufreq/sun50i-cpufreq-nvmem.c

@@ -56,12 +56,9 @@ static int sun50i_cpufreq_get_efuse(u32 *versions)
 
 	speedbin_nvmem = of_nvmem_cell_get(np, NULL);
 	of_node_put(np);
-	if (IS_ERR(speedbin_nvmem)) {
-		if (PTR_ERR(speedbin_nvmem) != -EPROBE_DEFER)
-			pr_err("Could not get nvmem cell: %ld\n",
-			       PTR_ERR(speedbin_nvmem));
-		return PTR_ERR(speedbin_nvmem);
-	}
+	if (IS_ERR(speedbin_nvmem))
+		return dev_err_probe(cpu_dev, PTR_ERR(speedbin_nvmem),
+				     "Could not get nvmem cell\n");
 
 	speedbin = nvmem_cell_read(speedbin_nvmem, &len);
 	nvmem_cell_put(speedbin_nvmem);

drivers/cpufreq/tegra194-cpufreq.c

@@ -589,6 +589,7 @@ static const struct of_device_id tegra194_cpufreq_of_match[] = {
 	{ .compatible = "nvidia,tegra239-ccplex-cluster", .data = &tegra239_cpufreq_soc },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, tegra194_cpufreq_of_match);
 
 static struct platform_driver tegra194_ccplex_driver = {
 	.driver = {