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-rw-r--r--libio/iovdprintf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libio/iovdprintf.c b/libio/iovdprintf.c
index fb359d263d..d9fa886fdf 100644
--- a/libio/iovdprintf.c
+++ b/libio/iovdprintf.c
@@ -54,6 +54,7 @@ __printf_buffer_flush_dprintf (struct __printf_buffer_dprintf *buf)
 	}
       p += ret;
     }
+  buf->base.written += buf->base.write_ptr - buf->base.write_base;
   buf->base.write_ptr = buf->buf;
 }