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-rw-r--r--fs/btrfs/lzo.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index 3dbe6eb5fda7..295bbc13ace6 100644
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -357,9 +357,10 @@ int lzo_decompress_bio(struct list_head *ws, struct compressed_bio *cb)
ASSERT(cur_in / sectorsize ==
(cur_in + LZO_LEN - 1) / sectorsize);
cur_page = cb->compressed_pages[cur_in / PAGE_SIZE];
- kaddr = kmap(cur_page);
ASSERT(cur_page);
+ kaddr = kmap(cur_page);
seg_len = read_compress_length(kaddr + offset_in_page(cur_in));
+ kunmap(cur_page);
cur_in += LZO_LEN;
/* Copy the compressed segment payload into workspace */