diff options
Diffstat (limited to 'ipc/msg.c')
| -rw-r--r-- | ipc/msg.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/ipc/msg.c b/ipc/msg.c index e12307d0c920..e3e52ce01123 100644 --- a/ipc/msg.c +++ b/ipc/msg.c @@ -235,7 +235,7 @@ static void freeque(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp) { struct msg_msg *msg, *t; struct msg_queue *msq = container_of(ipcp, struct msg_queue, q_perm); - WAKE_Q(wake_q); + DEFINE_WAKE_Q(wake_q); expunge_all(msq, -EIDRM, &wake_q); ss_wakeup(msq, &wake_q, true); @@ -397,7 +397,7 @@ static int msgctl_down(struct ipc_namespace *ns, int msqid, int cmd, goto out_up; case IPC_SET: { - WAKE_Q(wake_q); + DEFINE_WAKE_Q(wake_q); if (msqid64.msg_qbytes > ns->msg_ctlmnb && !capable(CAP_SYS_RESOURCE)) { @@ -634,7 +634,7 @@ long do_msgsnd(int msqid, long mtype, void __user *mtext, struct msg_msg *msg; int err; struct ipc_namespace *ns; - WAKE_Q(wake_q); + DEFINE_WAKE_Q(wake_q); ns = current->nsproxy->ipc_ns; @@ -763,7 +763,10 @@ static inline int convert_mode(long *msgtyp, int msgflg) if (*msgtyp == 0) return SEARCH_ANY; if (*msgtyp < 0) { - *msgtyp = -*msgtyp; + if (*msgtyp == LONG_MIN) /* -LONG_MIN is undefined */ + *msgtyp = LONG_MAX; + else + *msgtyp = -*msgtyp; return SEARCH_LESSEQUAL; } if (msgflg & MSG_EXCEPT) @@ -850,7 +853,7 @@ long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgfl struct msg_queue *msq; struct ipc_namespace *ns; struct msg_msg *msg, *copy = NULL; - WAKE_Q(wake_q); + DEFINE_WAKE_Q(wake_q); ns = current->nsproxy->ipc_ns; |