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-rw-r--r--drivers/md/dm-ioctl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index ac83f5002ce5..489935d5f22d 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1471,7 +1471,7 @@ static void retrieve_deps(struct dm_table *table,
/*
* Check we have enough space.
*/
- needed = sizeof(*deps) + (sizeof(*deps->dev) * count);
+ needed = struct_size(deps, dev, count);
if (len < needed) {
param->flags |= DM_BUFFER_FULL_FLAG;
return;