[glibc] linux: Use long int for syscall return value

[glibc] linux: Use long int for syscall return value

[Adhemerval Zanella]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=36d423e2032e98305799071b831691fc4c06deea

commit 36d423e2032e98305799071b831691fc4c06deea
Author: Xing Li <lixing@loongson.cn>
Date:   Tue Nov 29 19:24:43 2022 +0800

    linux: Use long int for syscall return value
    
    The linux syscall ABI returns long, so the generic syscall code for
    linux should use long for the return value.
    
    This fixes the truncation of the return value of the syscall function
    when that does not fit into an int.
    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

Diff:
---
 sysdeps/unix/sysv/linux/syscall.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sysdeps/unix/sysv/linux/syscall.c b/sysdeps/unix/sysv/linux/syscall.c
index 7303ba7188..8cb0b66b1c 100644
--- a/sysdeps/unix/sysv/linux/syscall.c
+++ b/sysdeps/unix/sysv/linux/syscall.c
@@ -33,7 +33,7 @@ syscall (long int number, ...)
   long int a5 = va_arg (args, long int);
   va_end (args);
 
-  int r = INTERNAL_SYSCALL_NCS_CALL (number, a0, a1, a2, a3, a4, a5);
+  long int r = INTERNAL_SYSCALL_NCS_CALL (number, a0, a1, a2, a3, a4, a5);
   if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (r)))
     {
       __set_errno (-r);