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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-02-27 10:50:11 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-02-27 10:50:11 +1100
commitf851013cb2238a82782da03ac82a14447933f90d (patch)
treef97835f69d244865c4a5397d0e6d45d1276a919d /fs/btrfs/compression.c
parentf2699491e06584a2ebb0939f108ad29f3b151456 (diff)
parent203738e548cefc3fc3c2f73a9063176c9f3583d5 (diff)
downloadop-kernel-dev-f851013cb2238a82782da03ac82a14447933f90d.zip
op-kernel-dev-f851013cb2238a82782da03ac82a14447933f90d.tar.gz
Merge remote-tracking branch 'origin/master' into next
Diffstat (limited to 'fs/btrfs/compression.c')
-rw-r--r--fs/btrfs/compression.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 14f1c5a..d02c27c 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -588,6 +588,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
page_offset(bio->bi_io_vec->bv_page),
PAGE_CACHE_SIZE);
read_unlock(&em_tree->lock);
+ if (!em)
+ return -EIO;
compressed_len = em->block_len;
cb = kmalloc(compressed_bio_size(root, compressed_len), GFP_NOFS);
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