Btrfs: check return value of btrfs_alloc_path()

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / btrfs / compression.c

diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 992a4b9..41d1d7c 100644 (file)
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -663,8 +663,9 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
                        atomic_inc(&cb->pending_bios);
 
                        if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {
-                               btrfs_lookup_bio_sums(root, inode, comp_bio,
-                                                     sums);
+                               ret = btrfs_lookup_bio_sums(root, inode,
+                                                       comp_bio, sums);
+                               BUG_ON(ret);
                        }
                        sums += (comp_bio->bi_size + root->sectorsize - 1) /
                                root->sectorsize;
@@ -689,8 +690,10 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
        ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);
        BUG_ON(ret);
 
-       if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM))
-               btrfs_lookup_bio_sums(root, inode, comp_bio, sums);
+       if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {
+               ret = btrfs_lookup_bio_sums(root, inode, comp_bio, sums);
+               BUG_ON(ret);
+       }
 
        ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);
        BUG_ON(ret);