From: Candice Li Date: Wed, 20 May 2026 04:14:37 +0000 (+0800) Subject: drm/amd/pm: use kcalloc in phm table copy helpers X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=05465e2a13f138258a0c77116fd8fd9f2f41952e;p=thirdparty%2Flinux.git 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 Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- 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 30d83e18db407..085b100821b97 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;