diff mbox series

[v2,1/3] cpufreq: qcom: fix memory leak in error path

Message ID 20221015130424.1923706-1-fabien.parent@linaro.org
State New
Headers
Series [v2,1/3] cpufreq: qcom: fix memory leak in error path |

Commit Message

Fabien Parent Oct. 15, 2022, 1:04 p.m. UTC 
  If for some reason the speedbin length is incorrect, then there is a
memory leak in the error path because we never free the speedbin buffer.
This commit fixes the error path to always free the speedbin buffer.

Fixes: a8811ec764f9 ("cpufreq: qcom: Add support for krait based socs")
Signed-off-by: Fabien Parent <fabien.parent@linaro.org>
---

v2: Added missing "Fixes" tag

 drivers/cpufreq/qcom-cpufreq-nvmem.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

Comments

Viresh Kumar Oct. 18, 2022, 10:37 a.m. UTC | #1 
On 15-10-22, 15:04, Fabien Parent wrote:
> If for some reason the speedbin length is incorrect, then there is a
> memory leak in the error path because we never free the speedbin buffer.
> This commit fixes the error path to always free the speedbin buffer.
> 
> Fixes: a8811ec764f9 ("cpufreq: qcom: Add support for krait based socs")
> Signed-off-by: Fabien Parent <fabien.parent@linaro.org>
> ---
> 
> v2: Added missing "Fixes" tag
> 
>  drivers/cpufreq/qcom-cpufreq-nvmem.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)

Applied all three. Thanks.
diff mbox series

Patch

diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c
index 863548f59c3e..3bd38acde4b9 100644
--- a/drivers/cpufreq/qcom-cpufreq-nvmem.c
+++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c
@@ -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);
 
@@ -230,7 +231,8 @@  static int qcom_cpufreq_krait_name_version(struct device *cpu_dev,
 		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 = {