From d01c84b97f19f1137211e90b0a910289a560019e Mon Sep 17 00:00:00 2001 From: Javier Carrasco Date: Thu, 23 May 2024 23:24:59 +0200 Subject: cpufreq: qcom-nvmem: fix memory leaks in probe error paths The code refactoring added new error paths between the np device node allocation and the call to of_node_put(), which leads to memory leaks if any of those errors occur. Add the missing of_node_put() in the error paths that require it. Cc: stable@vger.kernel.org Fixes: 57f2f8b4aa0c ("cpufreq: qcom: Refactor the driver to make it easier to extend") Signed-off-by: Javier Carrasco Signed-off-by: Viresh Kumar --- drivers/cpufreq/qcom-cpufreq-nvmem.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c index ea05d9d67490..5004e1dbc752 100644 --- a/drivers/cpufreq/qcom-cpufreq-nvmem.c +++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c @@ -480,23 +480,30 @@ static int qcom_cpufreq_probe(struct platform_device *pdev) drv = devm_kzalloc(&pdev->dev, struct_size(drv, cpus, num_possible_cpus()), GFP_KERNEL); - if (!drv) + if (!drv) { + of_node_put(np); return -ENOMEM; + } match = pdev->dev.platform_data; drv->data = match->data; - if (!drv->data) + if (!drv->data) { + of_node_put(np); return -ENODEV; + } if (drv->data->get_version) { speedbin_nvmem = of_nvmem_cell_get(np, NULL); - if (IS_ERR(speedbin_nvmem)) + if (IS_ERR(speedbin_nvmem)) { + of_node_put(np); return dev_err_probe(cpu_dev, PTR_ERR(speedbin_nvmem), "Could not get nvmem cell\n"); + } ret = drv->data->get_version(cpu_dev, speedbin_nvmem, &pvs_name, drv); if (ret) { + of_node_put(np); nvmem_cell_put(speedbin_nvmem); return ret; } -- cgit v1.2.3