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-rw-r--r--drivers/md/bitmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 927cb34c480..7c426d07a55 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -274,7 +274,7 @@ static int write_sb_page(struct bitmap *bitmap, struct page *page, int wait)
if (bitmap->offset < 0) {
/* DATA BITMAP METADATA */
if (bitmap->offset
- + page->index * (PAGE_SIZE/512)
+ + (long)(page->index * (PAGE_SIZE/512))
+ size/512 > 0)
/* bitmap runs in to metadata */
return -EINVAL;