* io.c (rb_f_syscall): Some syscall return unsigned or pointer value.

	  Therefore we should only check the result is -1 or not. [ruby-core:34062]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30526 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/io.c b/io.c
index f8aa6dd3f7..2fcc46b139 100644
--- a/io.c
+++ b/io.c
@@ -7931,7 +7931,8 @@ rb_f_syscall(int argc, VALUE *argv)
 #endif
     }
 
-    if (retval < 0) rb_sys_fail(0);
+    if (retval == -1)
+	rb_sys_fail(0);
     return RETVAL2NUM(retval);
 #undef SYSCALL
 #undef NUM2SYSCALLID