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From 9f3b899a2e8bf79f572f408bfd86836578f46106 Mon Sep 17 00:00:00 2001
From: Lv Ruyi <lv.ruyi@zte.com.cn>
Date: Thu, 4 Nov 2021 11:30:47 +0000
Subject: [PATCH 15/40] optee: fix kfree NULL pointer
This patch fixes the following Coccinelle error:
drivers/tee/optee/ffa_abi.c: 877: ERROR optee is NULL but dereferenced.
If memory allocation fails, optee is null pointer. the code will goto err
and release optee.
Fixes: 4615e5a34b95 ("optee: add FF-A support")
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
[jw: removed the redundant braces]
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Upstream-Status: Pending [Not submitted to upstream yet]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com
---
drivers/tee/optee/ffa_abi.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/tee/optee/ffa_abi.c b/drivers/tee/optee/ffa_abi.c
index 45424824e0f9..d8c8683863aa 100644
--- a/drivers/tee/optee/ffa_abi.c
+++ b/drivers/tee/optee/ffa_abi.c
@@ -810,10 +810,9 @@ static int optee_ffa_probe(struct ffa_device *ffa_dev)
return -EINVAL;
optee = kzalloc(sizeof(*optee), GFP_KERNEL);
- if (!optee) {
- rc = -ENOMEM;
- goto err;
- }
+ if (!optee)
+ return -ENOMEM;
+
optee->pool = optee_ffa_config_dyn_shm();
if (IS_ERR(optee->pool)) {
rc = PTR_ERR(optee->pool);
--
2.34.1
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