[PATCH] cpufreq:exynos-cpufreq - Fix for memory leak in case SOC name does not match.
From: Shailendra Verma <hidden>
Date: 2015-05-23 03:03:09
Also in:
linux-arm-kernel, linux-samsung-soc, lkml
Subsystem:
cpu frequency scaling framework, the rest · Maintainers:
"Rafael J. Wysocki", Viresh Kumar, Linus Torvalds
During probe free the memory allocated to "exynos_info" in case of unknown SOC type. Signed-off-by: Shailendra Verma <redacted> --- drivers/cpufreq/exynos-cpufreq.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 82d2fbb..5b57a0f 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c@@ -182,20 +182,25 @@ static int exynos_cpufreq_probe(struct platform_device *pdev) ret = exynos5250_cpufreq_init(exynos_info); } else { pr_err("%s: Unknown SoC type\n", __func__); - return -ENODEV; + ret = -ENODEV; + goto err_vdd_arm; } - if (ret) + if (ret) { + ret = -EINVAL; goto err_vdd_arm; + } if (exynos_info->set_freq == NULL) { dev_err(&pdev->dev, "No set_freq function (ERR)\n"); + ret = -EINVAL; goto err_vdd_arm; } arm_regulator = regulator_get(NULL, "vdd_arm"); if (IS_ERR(arm_regulator)) { dev_err(&pdev->dev, "failed to get resource vdd_arm\n"); + ret = -EINVAL; goto err_vdd_arm; }
@@ -203,8 +208,10 @@ static int exynos_cpufreq_probe(struct platform_device *pdev) locking_frequency = clk_get_rate(exynos_info->cpu_clk) / 1000; ret = cpufreq_register_driver(&exynos_driver); - if (ret) + if (ret) { + ret = -EINVAL; goto err_cpufreq_reg; + } cpu0 = of_get_cpu_node(0, NULL); if (!cpu0) {
@@ -227,7 +234,7 @@ err_cpufreq_reg: regulator_put(arm_regulator); err_vdd_arm: kfree(exynos_info); - return -EINVAL; + return ret; } static struct platform_driver exynos_cpufreq_platdrv = {
--
1.7.9.5