Fix bwlimit multiplication overflow. Fixes bug 8375.

1 files changed, 1 insertions, 1 deletions

diff --git a/io.c b/io.c
index 4fb78aab..7cb3be13 100644
--- a/io.c
+++ b/io.c
@@ -1936,7 +1936,7 @@ static void sleep_for_bwlimit(int bytes_written)
 	if (prior_tv.tv_sec) {
 		elapsed_usec = (start_tv.tv_sec - prior_tv.tv_sec) * ONE_SEC
 			     + (start_tv.tv_usec - prior_tv.tv_usec);
-		total_written -= elapsed_usec * bwlimit / (ONE_SEC/1024);
+		total_written -= (int64)elapsed_usec * bwlimit / (ONE_SEC/1024);
 		if (total_written < 0)
 			total_written = 0;
 	}