2 files changed, 6 insertions, 6 deletions

diff --git a/include/linux/compat.h b/include/linux/compat.h
index 9f68e90a14ec..f2b8fe20cc8e 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -266,9 +266,9 @@ long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
 #else
 long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
 long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,
-                size_t msgsz, int msgflg);
+                compat_ssize_t msgsz, int msgflg);
 long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp,
-                size_t msgsz, long msgtyp, int msgflg);
+                compat_ssize_t msgsz, long msgtyp, int msgflg);
 long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
 #endif
 long compat_sys_msgctl(int first, int second, void __user *uptr);
diff --git a/ipc/compat.c b/ipc/compat.c
index a41600f6ba52..20f92b2f2932 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -373,21 +373,21 @@ long compat_sys_semctl(int semid, int semnum, int cmd, int arg)
 }
 
 long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp,
-                       size_t msgsz, int msgflg)
+                       compat_ssize_t msgsz, int msgflg)
 {
         compat_long_t mtype;
 
         if (get_user(mtype, &msgp->mtype))
                 return -EFAULT;
-        return do_msgsnd(msqid, mtype, msgp->mtext, msgsz, msgflg);
+        return do_msgsnd(msqid, mtype, msgp->mtext, (ssize_t)msgsz, msgflg);
 }
 
 long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp,
-                       size_t msgsz, long msgtyp, int msgflg)
+                       compat_ssize_t msgsz, long msgtyp, int msgflg)
 {
         long err, mtype;
 
-        err =  do_msgrcv(msqid, &mtype, msgp->mtext, msgsz, msgtyp, msgflg);
+        err =  do_msgrcv(msqid, &mtype, msgp->mtext, (ssize_t)msgsz, msgtyp, msgflg);
         if (err < 0)
                 goto out;