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ipc/compat_sys_msgrcv: change msgtyp type from long to compat_long_t
Change the type of compat_sys_msgrcv's msgtyp parameter from long to compat_long_t, since compat user space passes only a 32 bit signed value. Let the compat wrapper do proper sign extension to 64 bit of this parameter. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
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@ -321,7 +321,7 @@ asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
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asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
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compat_ssize_t msgsz, int msgflg);
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asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
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compat_ssize_t msgsz, long msgtyp, int msgflg);
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compat_ssize_t msgsz, compat_long_t msgtyp, int msgflg);
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long compat_sys_msgctl(int first, int second, void __user *uptr);
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long compat_sys_shmctl(int first, int second, void __user *uptr);
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long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
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@ -430,9 +430,9 @@ COMPAT_SYSCALL_DEFINE4(msgsnd, int, msqid, compat_uptr_t, msgp,
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}
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COMPAT_SYSCALL_DEFINE5(msgrcv, int, msqid, compat_uptr_t, msgp,
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compat_ssize_t, msgsz, long, msgtyp, int, msgflg)
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compat_ssize_t, msgsz, compat_long_t, msgtyp, int, msgflg)
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{
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return do_msgrcv(msqid, compat_ptr(msgp), (ssize_t)msgsz, msgtyp,
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return do_msgrcv(msqid, compat_ptr(msgp), (ssize_t)msgsz, (long)msgtyp,
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msgflg, compat_do_msg_fill);
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}
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