linux-kernel - [PATCH] Fix ppc32 zImage inflate

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Message-ID: <87u05dhquk.fsf@slug.be.48ers.dk>
Date:	Thu, 20 Jul 2006 05:56:03 +0200
From:	Peter Korsgaard <jacmet@...site.dk>
To:	rpurdie@...ys.net
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] Fix ppc32 zImage inflate

Hi,

The recent zlib update (commit
4f3865fb57a04db7cca068fed1c15badc064a302) broke ppc32 zImage
decompression as it tries to decompress to address zero and the
updated zlib_inflate checks that strm->next_out isn't a null pointer.

This little patch fixes it.

diff -Naur linux-2.6.18-rc2.orig/lib/zlib_inflate/inflate.c linux-2.6.18-rc2/lib/zlib_inflate/inflate.c
--- linux-2.6.18-rc2.orig/lib/zlib_inflate/inflate.c	2006-07-20 10:26:21.000000000 +0200
+++ linux-2.6.18-rc2/lib/zlib_inflate/inflate.c	2006-07-20 17:02:27.000000000 +0200
@@ -347,7 +347,7 @@
     static const unsigned short order[19] = /* permutation of code lengths */
         {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
 
-    if (strm == NULL || strm->state == NULL || strm->next_out == NULL ||
+    if (strm == NULL || strm->state == NULL ||
         (strm->next_in == NULL && strm->avail_in != 0))
         return Z_STREAM_ERROR;

-- 
Bye, Peter Korsgaard
-
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