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    Subject[PATCH] set_tid_address.2: SYNOPSIS: Fix set_tid_address() return type
    Date
    The Linux kernel uses 'pid_t' instead of 'long' for the return type.
    As glibc provides no wrapper, use the same types the kernel uses.

    $ sed -n 34,36p man-pages/man2/set_tid_address.2
    .PP
    .IR Note :
    There is no glibc wrapper for this system call; see NOTES.

    $ grep -rn 'SYSCALL_DEFINE.*set_tid_address' linux/
    linux/kernel/fork.c:1632:
    SYSCALL_DEFINE1(set_tid_address, int __user *, tidptr)

    $ sed -n 1632,1638p linux/kernel/fork.c
    SYSCALL_DEFINE1(set_tid_address, int __user *, tidptr)
    {
    current->clear_child_tid = tidptr;

    return task_pid_vnr(current);
    }

    $ grep -rn 'task_pid_vnr(struct' linux/
    linux/include/linux/sched.h:1374:
    static inline pid_t task_pid_vnr(struct task_struct *tsk)

    Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
    ---
    man2/set_tid_address.2 | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/man2/set_tid_address.2 b/man2/set_tid_address.2
    index 380efcdd8..b18b8efef 100644
    --- a/man2/set_tid_address.2
    +++ b/man2/set_tid_address.2
    @@ -29,7 +29,7 @@ set_tid_address \- set pointer to thread ID
    .nf
    .B #include <linux/unistd.h>
    .PP
    -.BI "long set_tid_address(int *" tidptr );
    +.BI "pid_t set_tid_address(int *" tidptr );
    .fi
    .PP
    .IR Note :
    --
    2.29.2
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