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Subject[PATCH 3/7] [PATCH] Revert unnecessary zlib_inflate/inftrees.c fix
-stable review patch.  If anyone has any  objections, please let us know.
------------------

It turns out that empty distance code tables are not an error, and that
a compressed block with only literals can validly have an empty table
and should not be flagged as a data error.

Some old versions of gzip had problems with this case, but it does not
affect the zlib code in the kernel.

Analysis and explanations thanks to Sergey Vlasov <vsu@altlinux.ru>

Cc: Sergey Vlasov <vsu@altlinux.ru>
Cc: Tavis Ormandy <taviso@gentoo.org>
Cc: Tim Yamin <plasmaroo@gentoo.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Chris Wright <chrisw@osdl.org>
---
lib/zlib_inflate/inftrees.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.12.y/lib/zlib_inflate/inftrees.c
===================================================================
--- linux-2.6.12.y.orig/lib/zlib_inflate/inftrees.c
+++ linux-2.6.12.y/lib/zlib_inflate/inftrees.c
@@ -141,7 +141,7 @@ static int huft_build(
{
*t = NULL;
*m = 0;
- return Z_DATA_ERROR;
+ return Z_OK;
}


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