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amd-pstate: Fix memory leak in amd_pstate_epp_cpu_init()

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[ Upstream commit beda3b3635 ]

On failure to set the epp, the function amd_pstate_epp_cpu_init()
returns with an error code without freeing the cpudata object that was
allocated at the beginning of the function.

Ensure that the cpudata object is freed before returning from the
function.

This memory leak was discovered by Claude Opus 4.6 with the aid of
Chris Mason's AI review-prompts
(https://github.com/masoncl/review-prompts/tree/main/kernel).

Assisted-by: Claude:claude-opus-4.6 review-prompts/linux
Fixes: f9a378ff64 ("cpufreq/amd-pstate: Set different default EPP policy for Epyc and Ryzen")
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Gautham R. Shenoy
2026-05-23 13:06:24 +02:00
committed by Greg Kroah-Hartman
parent 187c8be0c4
commit 539aabbab1
1 changed files with 1 additions and 1 deletions
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drivers/cpufreq/amd-pstate.c
+1 -1
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@@ -1525,7 +1525,7 @@ static int amd_pstate_epp_cpu_init(struct cpufreq_policy *policy)
ret = amd_pstate_set_epp(policy, cpudata->epp_default);
if (ret)
return ret;
goto free_cpudata1;
current_pstate_driver->adjust_perf = NULL;