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-rw-r--r--drivers/md/dm-stats.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
index 492fe6a5ebf2..d1fd31a6dd1a 100644
--- a/drivers/md/dm-stats.c
+++ b/drivers/md/dm-stats.c
@@ -792,6 +792,8 @@ static int message_stats_create(struct mapped_device *md,
return -EINVAL;
if (sscanf(argv[2], "/%u%c", &divisor, &dummy) == 1) {
+ if (!divisor)
+ return -EINVAL;
step = end - start;
if (do_div(step, divisor))
step++;
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