linux-kernel - [PATCH -next] optee: Fix NULL but dereferenced coccicheck error

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 19 Nov 2021 16:05:43 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     jens.wiklander@...aro.org
Cc:     sumit.garg@...aro.org, op-tee@...ts.trustedfirmware.org,
        linux-kernel@...r.kernel.org, Yang Li <yang.lee@...ux.alibaba.com>
Subject: [PATCH -next] optee: Fix NULL but dereferenced coccicheck error

Eliminate the following coccicheck warning:
./drivers/tee/optee/smc_abi.c:1508:12-15: ERROR: optee is NULL but
dereferenced.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Fixes: 'commit 6749e69c4dad ("optee: add asynchronous notifications")'
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 drivers/tee/optee/smc_abi.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/tee/optee/smc_abi.c b/drivers/tee/optee/smc_abi.c
index 92759d7..1f471ff 100644
--- a/drivers/tee/optee/smc_abi.c
+++ b/drivers/tee/optee/smc_abi.c
@@ -1505,8 +1505,6 @@ static int optee_probe(struct platform_device *pdev)
 	kfree(optee);
 err_free_pool:
 	tee_shm_pool_free(pool);
-	if (optee->smc.memremaped_shm)
-		memunmap(optee->smc.memremaped_shm);
 	return rc;
 }
 
-- 
1.8.3.1