[PATCH 1/4] squashfs: fix locking bug in zlib wrapper

[Phillip Lougher]

Fix locking bug in zlib wrapper introduced by recent decompressor changes.

Signed-off-by: Phillip Lougher <phillip@xxxxxxxxxxxxxxxxxxx>
---
 fs/squashfs/zlib_wrapper.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/squashfs/zlib_wrapper.c b/fs/squashfs/zlib_wrapper.c
index 15a03d0..7a60387 100644
--- a/fs/squashfs/zlib_wrapper.c
+++ b/fs/squashfs/zlib_wrapper.c
@@ -128,8 +128,9 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
 		goto release_mutex;
 	}

+	length = stream->total_out;
 	mutex_unlock(&msblk->read_data_mutex);
-	return stream->total_out;
+	return length;

 release_mutex:
 	mutex_unlock(&msblk->read_data_mutex);
--
1.6.3.3

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