video: driver: Error handling for HW overload

- send '-ENOMEM' after max mbps is reached

Change-Id: I6d597021046ea375f2131c2e40ac07d1aebdd9b8
Signed-off-by: Deepa Guthyappa Madivalara <[email protected]>

driver/vidc/src/msm_vidc_driver.c

@@ -5877,10 +5877,9 @@ static int msm_vidc_print_insts_info(struct msm_vidc_core *core)
 
 int msm_vidc_check_core_mbps(struct msm_vidc_inst *inst)
 {
-	u32 mbps = 0, num_inactive_sessions = 0;
+	u32 mbps = 0;
 	struct msm_vidc_core *core;
 	struct msm_vidc_inst *instance;
-	u64 curr_time_ns;
 	int rc = 0;
 
 	if (!inst || !inst->core || !inst->capabilities) {
@@ -5894,18 +5893,12 @@ int msm_vidc_check_core_mbps(struct msm_vidc_inst *inst)
 		return 0;
 	}
 
-	curr_time_ns = ktime_get_ns();
-
 	core_lock(core, __func__);
 	list_for_each_entry(instance, &core->instances, list) {
 		/* ignore invalid/error session */
 		if (is_session_error(instance))
 			continue;
 
-		if (!is_active_session(instance->last_qbuf_time_ns, curr_time_ns)) {
-			num_inactive_sessions++;
-		}
-
 		/* ignore thumbnail, image, and non realtime sessions */
 		if (is_thumbnail_session(instance) ||
 			is_image_session(instance) ||
@@ -5917,7 +5910,7 @@ int msm_vidc_check_core_mbps(struct msm_vidc_inst *inst)
 	core_unlock(core, __func__);
 
 	if (mbps > core->capabilities[MAX_MBPS].value) {
-		rc = num_inactive_sessions ? -ENOMEM : -EAGAIN;
+		rc = -ENOMEM;
 		i_vpr_e(inst, "%s: Hardware overloaded. needed %u, max %u", __func__,
 			mbps, core->capabilities[MAX_MBPS].value);
 		return rc;