[AMD Official Use Only - AMD Internal Distribution Only]
Hi Peng,
> -----Original Message-----
> From: [email protected] <[email protected]>
> Sent: Wednesday, May 15, 2024 10:54 AM
> To: [email protected]; [email protected]
> Cc: Peng Ma <[email protected]>; Huang, Ray <[email protected]>;
> Shenoy, Gautham Ranjal <[email protected]>; Limonciello, Mario
> <[email protected]>; Yuan, Perry <[email protected]>; linux-
> [email protected]; [email protected]
> Subject: [v3] cpufreq: amd-pstate: fix the memory to free after epp exist
The subject need to be update as below. " git format-patch -1 -v 3"
[PATCH v3] cpufreq: amd-pstate: fix the memory to free after epp exist
>
> From: andypma <andypma.tencent.com>
>
> the cpudata memory from kzmalloc in epp init function is not free after epp exist,
> so we should free it.
>
> Signed-off-by: Peng Ma <[email protected]>
>
> Changes since v2:
> update Signed-off-by to Peng Ma <[email protected]>.
> set a space between if and "(".
>
> Changes since v1:
> check whether it is empty before releasing.
> set driver_data is NULL after free.
> ---
> drivers/cpufreq/amd-pstate.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index
> 6a342b0c0140..1b7e82a0ad2e 100644
> --- a/drivers/cpufreq/amd-pstate.c
> +++ b/drivers/cpufreq/amd-pstate.c
> @@ -1441,6 +1441,13 @@ static int amd_pstate_epp_cpu_init(struct
> cpufreq_policy *policy)
>
> static int amd_pstate_epp_cpu_exit(struct cpufreq_policy *policy) {
> + struct amd_cpudata *cpudata = policy->driver_data;
> +
> + if (cpudata) {
> + kfree(cpudata);
> + policy->driver_data = NULL;
> + }
> +
> pr_debug("CPU %d exiting\n", policy->cpu);
> return 0;
> }
> --
> 2.41.0