A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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msm: cvp: Avoid racing in session deletion and use

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Avoid a deleted session being used for power update.

Change-Id: I44a6ea0a4c0dda499bc6adac94b2edafdeeab82c
Signed-off-by: George Shen <sqiao@codeaurora.org>
This commit is contained in:
George Shen 2020-09-30 22:23:57 -07:00
commit 734e44bed3
1 changed files with 3 additions and 0 deletions
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3
drivers/media/platform/msm/cvp/msm_cvp.c
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@ -754,6 +754,7 @@ static void aggregate_power_update(struct msm_cvp_core *core,
unsigned long op_mpu_max[2] = {0}, op_ica_max[2] = {0};
unsigned long op_fw_max[2] = {0}, bw_sum[2] = {0}, op_bw_max[2] = {0};
mutex_lock(&core->lock);
list_for_each_entry(inst, &core->instances, list) {
if (inst->state == MSM_CVP_CORE_INVALID ||
inst->state == MSM_CVP_CORE_UNINIT ||
@ -824,6 +825,8 @@ static void aggregate_power_update(struct msm_cvp_core *core,
core->dyn_clk.sum_fps[HFI_HW_ICA]);
}
mutex_unlock(&core->lock);
for (i = 0; i < 2; i++) {
fdu_sum[i] = max_3(fdu_sum[i], od_sum[i], mpu_sum[i]);
fdu_sum[i] = max_3(fdu_sum[i], ica_sum[i], fw_sum[i]);