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-rw-r--r--fs/btrfs/lzo.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index a554856a5f8a..7e8b0d6a7961 100644
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -230,8 +230,10 @@ static int lzo_compress_pages(struct list_head *ws,
in_len = min(bytes_left, PAGE_SIZE);
}
- if (tot_out > tot_in)
+ if (tot_out >= tot_in) {
+ ret = -E2BIG;
goto out;
+ }
/* store the size of all chunks of compressed data */
cpage_out = kmap(pages[0]);