[PATCH] Fix ppc32 zImage inflate

From: Peter Korsgaard
Date: Thu Jul 20 2006 - 11:57:30 EST


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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