[PATCH] subpage_prot.2: SYNOPSIS: Fix return type: s/long/int/

[Alejandro Colomar]

The Linux kernel uses 'int' instead of 'long' for the return type.
As glibc provides no wrapper, use the same type the kernel uses.

......

$ grep -n wrapper man-pages/man2/subpage_prot.2
40:There is no glibc wrapper for this system call; see NOTES.
99:Glibc does not provide a wrapper for this system call; call it using

$ grep -rn SYSCALL_DEFINE.*subpage_prot linux/;
linux/arch/powerpc/mm/book3s64/subpage_prot.c:190:
SYSCALL_DEFINE3(subpage_prot, unsigned long, addr,

$ sed -n /SYSCALL.*subpage_prot/,/^}/p \
  linux/arch/powerpc/mm/book3s64/subpage_prot.c \
  |grep return;
                return -ENOENT;
                return -EINVAL;
                return -EINVAL;
                return 0;
                return -EFAULT;
                        return -EFAULT;
        return err;

$ sed -n /SYSCALL.*subpage_prot/,/^}/p \
  linux/arch/powerpc/mm/book3s64/subpage_prot.c \
  |grep '\<err\>';
        int err;
                        err = -ENOMEM;
                err = -ENOMEM;
        err = 0;
        return err;

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

diff --git a/man2/subpage_prot.2 b/man2/subpage_prot.2
index b38ba718f..d6f016665 100644
--- a/man2/subpage_prot.2
+++ b/man2/subpage_prot.2
@@ -32,7 +32,7 @@
 subpage_prot \- define a subpage protection for an address range
 .SH SYNOPSIS
 .nf
-.BI "long subpage_prot(unsigned long " addr ", unsigned long " len ,
+.BI "int subpage_prot(unsigned long " addr ", unsigned long " len ,
 .BI "                  uint32_t *" map );
 .fi
 .PP
-- 
2.29.2