Commit 06755817 authored by Mario Limonciello's avatar Mario Limonciello Committed by Alex Deucher
Browse files

drm/amd/pm: Add missing mutex for pp_get_power_profile_mode 



Prevent possible issues from set and get being called simultaneously.

Signed-off-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 9a40d044

drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c

+5 −1
Original line number Diff line number Diff line
@@ -875,6 +875,7 @@ pp_dpm_get_vce_clock_state(void *handle, unsigned idx) 
static int pp_get_power_profile_mode(void *handle, char *buf)

{

	struct pp_hwmgr *hwmgr = handle;

	int ret;



	if (!hwmgr || !hwmgr->pm_en || !buf)

		return -EINVAL;
@@ -884,7 +885,10 @@ static int pp_get_power_profile_mode(void *handle, char *buf) 
		return snprintf(buf, PAGE_SIZE, "\n");

	}



	return hwmgr->hwmgr_func->get_power_profile_mode(hwmgr, buf);

	mutex_lock(&hwmgr->smu_lock);

	ret = hwmgr->hwmgr_func->get_power_profile_mode(hwmgr, buf);

	mutex_unlock(&hwmgr->smu_lock);

	return ret;

}



static int pp_set_power_profile_mode(void *handle, long *input, uint32_t size)