Index: uspace/lib/c/generic/io/io.c
===================================================================
--- uspace/lib/c/generic/io/io.c	(revision 8ad496d2a8d4b15e1f5cad0beeaaf4be44aef4e1)
+++ uspace/lib/c/generic/io/io.c	(revision 45cae6bbf4f84066a068fe7e627bf07f0f23c75e)
@@ -594,9 +594,10 @@
 		}
 		
-		buf += now;
+		data += now;
 		stream->buf_head += now;
 		buf_free -= now;
 		bytes_left -= now;
 		total_written += now;
+		stream->buf_state = _bs_write;
 		
 		if (buf_free == 0) {
@@ -606,7 +607,4 @@
 		}
 	}
-	
-	if (total_written > 0)
-		stream->buf_state = _bs_write;
 
 	if (need_flush)