1 files changed, 4 insertions, 6 deletions
diff --git a/file.c b/file.c
index decb5ba81e..8db72a089a 100644
--- a/file.c
+++ b/file.c
@@ -2051,13 +2051,11 @@ rb_file_s_readlink(klass, path)
 
     SafeStringValue(path);
     buf = xmalloc(size);
-    for (;;) {
-	rv = readlink(RSTRING(path)->ptr, buf, size);
-#ifndef _AIX
-	if (rv != size) break;
-#else
-	if (rv > 0 || errno != ERANGE) break;
+    while ((rv = readlink(RSTRING(path)->ptr, buf, size)) == size
+#ifdef _AIX
+	    || (rv < 0 && errno == ERANGE) /* quirky behavior of GPFS */
 #endif
+	) {
 	size *= 2;
 	buf = xrealloc(buf, size);
     }