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From: David Xu <davidxu@FreeBSD.org>
Date: Wed, 26 Dec 2012 13:07:17 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r244695 - head/sys/dev/pci
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Author: davidxu
Date: Wed Dec 26 13:07:17 2012
New Revision: 244695
URL: http://svnweb.freebsd.org/changeset/base/244695

Log:
  Always initialize pattern_buf pointers to NULL, otherwise AMD64 machine
  panics with:
     free: address xxx(yyy) has not been allocated.
  it can be triggered by hald.

Modified:
  head/sys/dev/pci/pci_user.c

Modified: head/sys/dev/pci/pci_user.c
==============================================================================
--- head/sys/dev/pci/pci_user.c	Wed Dec 26 08:20:27 2012	(r244694)
+++ head/sys/dev/pci/pci_user.c	Wed Dec 26 13:07:17 2012	(r244695)
@@ -425,12 +425,12 @@ pci_ioctl(struct cdev *dev, u_long cmd, 
 #ifdef COMPAT_FREEBSD32
 	struct pci_conf_io32 *cio32 = NULL;
 	struct pci_conf_old32 conf_old32;
-	struct pci_match_conf_old32 *pattern_buf_old32;
+	struct pci_match_conf_old32 *pattern_buf_old32 = NULL;
 #endif
 	struct pci_conf_old conf_old;
 	struct pci_io iodata;
 	struct pci_io_old *io_old;
-	struct pci_match_conf_old *pattern_buf_old;
+	struct pci_match_conf_old *pattern_buf_old = NULL;
 
 	io_old = NULL;
 
@@ -470,10 +470,8 @@ pci_ioctl(struct cdev *dev, u_long cmd, 
 #ifdef PRE7_COMPAT
 #ifdef COMPAT_FREEBSD32
 	case PCIOCGETCONF_OLD32:
-		pattern_buf_old32 = NULL;
 #endif
 	case PCIOCGETCONF_OLD:
-		pattern_buf_old = NULL;
 #endif
 	case PCIOCGETCONF: