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    SubjectRe: [Patch 3/4] ipc/mqueue: strengthen checks on mqueue creation
    On Tue, 01 May 2012 19:04:53 -0400
    KOSAKI Motohiro <kosaki.motohiro@gmail.com> wrote:

    > > OK, then would EOVERFLOW suit things better?
    >
    > I have no seen to any confusion source this. thank you.

    --- a/ipc/mqueue.c~ipc-mqueue-strengthen-checks-on-mqueue-creation-fix
    +++ a/ipc/mqueue.c
    @@ -687,13 +687,13 @@ static int mq_attr_ok(struct ipc_namespa
    }
    /* check for overflow */
    if (attr->mq_msgsize > ULONG_MAX/attr->mq_maxmsg)
    - return -ENOMEM;
    + return -EOVERFLOW;
    mq_treesize = attr->mq_maxmsg * sizeof(struct msg_msg) +
    min_t(unsigned int, attr->mq_maxmsg, MQ_PRIO_MAX) *
    sizeof(struct posix_msg_tree_node);
    total_size = attr->mq_maxmsg * attr->mq_msgsize;
    if (total_size + mq_treesize < total_size)
    - return -ENOMEM;
    + return -EOVERFLOW;
    return 0;
    }

    _


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