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authorIngo Molnar <mingo@elte.hu>2012-03-14 07:44:11 +0100
committerIngo Molnar <mingo@elte.hu>2012-03-14 07:44:11 +0100
commitcd593accdcc27ccbe6498d9ad1c2b6cc8e1d830d (patch)
tree9424d3ac86e753706cc6c3d7e6072d2a73711e29 /fs/btrfs/compression.c
parent11b91d6fe7272452c999573bab33c15c2f03dc31 (diff)
parentfde7d9049e55ab85a390be7f415d74c9f62dd0f9 (diff)
Merge tag 'v3.3-rc7' into x86/mce
Merge reason: Update from an ancient -rc1 base to an almost-final stable kernel. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 14f1c5a0b2d2..d02c27cd14c7 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);