X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=ipc%2Fmsg.c;h=9f29d9e89bac578a33f1f5c97e41e10f0f1d6403;hb=368ae537e056acd3f751fa276f48423f06803922;hp=bd60d7e159e8962e1f1927d7b19188696d543d5d;hpb=aaaafb7f953c60d9c9eeb1b10ecdbe6970421b24;p=firefly-linux-kernel-4.4.55.git diff --git a/ipc/msg.c b/ipc/msg.c index bd60d7e159e8..9f29d9e89bac 100644 --- a/ipc/msg.c +++ b/ipc/msg.c @@ -839,7 +839,7 @@ static inline void free_copy(struct msg_msg *copy) static struct msg_msg *find_msg(struct msg_queue *msq, long *msgtyp, int mode) { - struct msg_msg *msg; + struct msg_msg *msg, *found = NULL; long count = 0; list_for_each_entry(msg, &msq->q_messages, m_list) { @@ -848,6 +848,7 @@ static struct msg_msg *find_msg(struct msg_queue *msq, long *msgtyp, int mode) *msgtyp, mode)) { if (mode == SEARCH_LESSEQUAL && msg->m_type != 1) { *msgtyp = msg->m_type - 1; + found = msg; } else if (mode == SEARCH_NUMBER) { if (*msgtyp == count) return msg; @@ -857,7 +858,7 @@ static struct msg_msg *find_msg(struct msg_queue *msq, long *msgtyp, int mode) } } - return ERR_PTR(-EAGAIN); + return found ?: ERR_PTR(-EAGAIN); } long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgflg,