From: Fabien Parent fabien.parent@linaro.org
commit 9f42cf54403a42cb092636804d2628d8ecf71e75 upstream.
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.
Cc: v5.7+ stable@vger.kernel.org # v5.7+ Fixes: a8811ec764f9 ("cpufreq: qcom: Add support for krait based socs") Signed-off-by: Fabien Parent fabien.parent@linaro.org Signed-off-by: Viresh Kumar viresh.kumar@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/cpufreq/qcom-cpufreq-nvmem.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/cpufreq/qcom-cpufreq-nvmem.c +++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c @@ -213,6 +213,7 @@ static int qcom_cpufreq_krait_name_versi 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_versi 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_versi
drv->versions = (1 << speed);
+len_error: kfree(speedbin); - return 0; + return ret; }
static const struct qcom_cpufreq_match_data match_data_kryo = {