e2image: avoid potential divide by zero

It's highly unlikely after five seconds that zero blocks would have
been written, but let's silence the Coverity warning.

Addresses-Coverity-ID: 1147780

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>

diff --git a/misc/e2image.c b/misc/e2image.c
index ac62ffec7165b8da06b88a4d48e3bc24d86e6b74..6c5113779bcf940efd742f403223014a7737d4cb 100644 (file)
--- a/misc/e2image.c
+++ b/misc/e2image.c
@@ -634,7 +634,7 @@ more_blocks:
                        bscount = print_progress(total_written,
                                                 meta_blocks_count);
                        duration = time(NULL) - start_time;
-                       if (duration > 5) {
+                       if (duration > 5 && total_written) {
                                time_t est = (duration * meta_blocks_count /
                                              total_written) - duration;
                                char buff[30];