linux-kernel - [PATCH] venus: guard load

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Message-Id: <20201110064650.143800-1-frkoenig@chromium.org>
Date:   Tue, 10 Nov 2020 06:46:51 +0000
From:   Fritz Koenig <frkoenig@...omium.org>
To:     linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, stanimir.varbanov@...aro.org,
        vgarodia@...eaurora.org, dikshita@...eaurora.org,
        acourbot@...omium.org, tfiga@...omium.org
Cc:     Fritz Koenig <frkoenig@...omium.org>
Subject: [PATCH] venus: guard load_scale

load_scale can only be safely called after
the encoder has been initialized.

Signed-off-by: Fritz Koenig <frkoenig@...omium.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
index aa2f6afa23544..32e27db1fa740 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.h
+++ b/drivers/media/platform/qcom/venus/pm_helpers.h
@@ -35,6 +35,10 @@ static inline int venus_pm_load_scale(struct venus_inst *inst)
 	if (!core->pm_ops || !core->pm_ops->load_scale)
 		return 0;
 
+	if (inst->session_type == VIDC_SESSION_TYPE_ENC &&
+	    inst->enc_state == VENUS_ENC_STATE_INIT)
+		return 0;
+
 	return core->pm_ops->load_scale(inst);
 }
 
-- 
2.29.2.299.gdc1121823c-goog