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cifsd: fix wrong use of rw semaphore in __session_create() 

Adding list to session table should be protected by
down_write/up_write().

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Namjae Jeon 2021-03-30 12:38:03 +09:00 committed by Steve French
parent e506649907
commit 69f447be15
1 changed files with 2 additions and 2 deletions
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4
fs/cifsd/mgmt/user_session.c
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@ -298,9 +298,9 @@ static struct ksmbd_session *__session_create(int protocol)
goto error;
if (protocol == CIFDS_SESSION_FLAG_SMB2) {
down_read(&sessions_table_lock);
down_write(&sessions_table_lock);
hash_add(sessions_table, &sess->hlist, sess->id);
up_read(&sessions_table_lock);
up_write(&sessions_table_lock);
}
return sess;