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-rw-r--r--fs/btrfs/file.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index b0ff34b96607..65338a1d14ad 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -185,6 +185,7 @@ int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
split = alloc_extent_map(GFP_NOFS);
if (!split2)
split2 = alloc_extent_map(GFP_NOFS);
+ BUG_ON(!split || !split2);
write_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, start, len);