linux-kernel - [PATCH v2 05/11] venus: hfi: return an error if session

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Message-Id: <20190628130002.24293-6-stanimir.varbanov@linaro.org>
Date:   Fri, 28 Jun 2019 15:59:56 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     linux-media@...r.kernel.org
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Vikash Garodia <vgarodia@...eaurora.org>,
        Tomasz Figa <tfiga@...omium.org>,
        Alexandre Courbot <acourbot@...omium.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>
Subject: [PATCH v2 05/11] venus: hfi: return an error if session_init is already called

This makes hfi_session_init to return an error when it is
already called without a call to hfi_session_deinit.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
---
 drivers/media/platform/qcom/venus/hfi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/hfi.c b/drivers/media/platform/qcom/venus/hfi.c
index 82eb889ab541..3d8b1284d1f3 100644
--- a/drivers/media/platform/qcom/venus/hfi.c
+++ b/drivers/media/platform/qcom/venus/hfi.c
@@ -198,6 +198,9 @@ int hfi_session_init(struct venus_inst *inst, u32 pixfmt)
 	const struct hfi_ops *ops = core->ops;
 	int ret;
 
+	if (inst->state != INST_UNINIT)
+		return -EINVAL;
+
 	inst->hfi_codec = to_codec_type(pixfmt);
 	reinit_completion(&inst->done);
 
-- 
2.17.1