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| author | Zhipeng Lu <alexious@zju.edu.cn> | 2023-12-24 11:22:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-26 02:35:40 +0300 |
| commit | ae7cbf935b9a1b41f65fe6443e7cd0c401500b20 (patch) | |
| tree | 6912026b37d4f72c95305755b616bbc5db194c3c /drivers/gpu/drm/amd/pm | |
| parent | 5024cce888e11e5688f77df81db9e14828495d64 (diff) | |
| download | linux-ae7cbf935b9a1b41f65fe6443e7cd0c401500b20.tar.xz | |
drm/amd/pm/smu7: fix a memleak in smu7_hwmgr_backend_init
[ Upstream commit 2f3be3ca779b11c332441b10e00443a2510f4d7b ]
The hwmgr->backend, (i.e. data) allocated by kzalloc is not freed in
the error-handling paths of smu7_get_evv_voltages and
smu7_update_edc_leakage_table. However, it did be freed in the
error-handling of phm_initializa_dynamic_state_adjustment_rule_settings,
by smu7_hwmgr_backend_fini. So the lack of free in smu7_get_evv_voltages
and smu7_update_edc_leakage_table is considered a memleak in this patch.
Fixes: 599a7e9fe1b6 ("drm/amd/powerplay: implement smu7 hwmgr to manager asics with smu ip version 7.")
Fixes: 8f0804c6b7d0 ("drm/amd/pm: add edc leakage controller setting")
Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/amd/pm')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c index 11372fcc59c8..b1a8799e2dee 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c @@ -2974,6 +2974,8 @@ static int smu7_hwmgr_backend_init(struct pp_hwmgr *hwmgr) result = smu7_get_evv_voltages(hwmgr); if (result) { pr_info("Get EVV Voltage Failed. Abort Driver loading!\n"); + kfree(hwmgr->backend); + hwmgr->backend = NULL; return -EINVAL; } } else { @@ -3019,8 +3021,10 @@ static int smu7_hwmgr_backend_init(struct pp_hwmgr *hwmgr) } result = smu7_update_edc_leakage_table(hwmgr); - if (result) + if (result) { + smu7_hwmgr_backend_fini(hwmgr); return result; + } return 0; } |