linux-kernel - [PATCH -next] tee: optee: fix error return code in probe function

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Date:   Thu, 10 Feb 2022 17:10:53 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <op-tee@...ts.trustedfirmware.org>
CC:     <jens.wiklander@...aro.org>, <sumit.garg@...aro.org>
Subject: [PATCH -next] tee: optee: fix error return code in probe function

If teedev_open() fails, probe function need return
error code.

Fixes: aceeafefff73 ("optee: use driver internal tee_context for some rpc")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/tee/optee/ffa_abi.c | 4 +++-
 drivers/tee/optee/smc_abi.c | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/tee/optee/ffa_abi.c b/drivers/tee/optee/ffa_abi.c
index f2bf6c61197f..f744ab15bf2c 100644
--- a/drivers/tee/optee/ffa_abi.c
+++ b/drivers/tee/optee/ffa_abi.c
@@ -869,8 +869,10 @@ static int optee_ffa_probe(struct ffa_device *ffa_dev)
 	optee_supp_init(&optee->supp);
 	ffa_dev_set_drvdata(ffa_dev, optee);
 	ctx = teedev_open(optee->teedev);
-	if (IS_ERR(ctx))
+	if (IS_ERR(ctx)) {
+		rc = PTR_ERR(ctx);
 		goto err_rhashtable_free;
+	}
 	optee->ctx = ctx;
 	rc = optee_notif_init(optee, OPTEE_DEFAULT_MAX_NOTIF_VALUE);
 	if (rc)
diff --git a/drivers/tee/optee/smc_abi.c b/drivers/tee/optee/smc_abi.c
index 1a55339c7072..c517d310249f 100644
--- a/drivers/tee/optee/smc_abi.c
+++ b/drivers/tee/optee/smc_abi.c
@@ -1417,8 +1417,10 @@ static int optee_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, optee);
 	ctx = teedev_open(optee->teedev);
-	if (IS_ERR(ctx))
+	if (IS_ERR(ctx)) {
+		rc = PTR_ERR(ctx);
 		goto err_supp_uninit;
+	}
 	optee->ctx = ctx;
 	rc = optee_notif_init(optee, max_notif_value);
 	if (rc)
-- 
2.25.1