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| author | Candice Li <candice.li@amd.com> | 2026-05-20 12:14:37 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-06-03 13:53:03 -0400 |
| commit | 05465e2a13f138258a0c77116fd8fd9f2f41952e (patch) | |
| tree | 2f89a9482538346b3947d1502e1b99d0acd29167 | |
| parent | 66a856e3e5d92a09363dea37e9376921b30aaa6b (diff) | |
| download | linux-05465e2a13f138258a0c77116fd8fd9f2f41952e.tar.gz linux-05465e2a13f138258a0c77116fd8fd9f2f41952e.zip | |
drm/amd/pm: use kcalloc in phm table copy helpers
Use kcalloc() so multiplication overflow is detected
and allocation fails safely for phm table copy helpers.
Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu_helper.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu_helper.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu_helper.c index 30d83e18db40..085b100821b9 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu_helper.c +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu_helper.c @@ -49,11 +49,10 @@ int phm_copy_clock_limits_array( const uint32_t *pptable_array, uint32_t power_saving_clock_count) { - uint32_t array_size, i; + uint32_t i; uint32_t *table; - array_size = sizeof(uint32_t) * power_saving_clock_count; - table = kzalloc(array_size, GFP_KERNEL); + table = kcalloc(power_saving_clock_count, sizeof(uint32_t), GFP_KERNEL); if (NULL == table) return -ENOMEM; @@ -71,11 +70,10 @@ int phm_copy_overdrive_settings_limits_array( const uint32_t *pptable_array, uint32_t od_setting_count) { - uint32_t array_size, i; + uint32_t i; uint32_t *table; - array_size = sizeof(uint32_t) * od_setting_count; - table = kzalloc(array_size, GFP_KERNEL); + table = kcalloc(od_setting_count, sizeof(uint32_t), GFP_KERNEL); if (NULL == table) return -ENOMEM; |