svn commit: r209055 - head/sys/dev/acpi_support

[Jung-uk Kim]

Author: jkim
Date: Fri Jun 11 18:19:23 2010
New Revision: 209055
URL: http://svn.freebsd.org/changeset/base/209055

Log:
  Fix a possible dereference of null pointer.
  
  Found by:	clang static analyzer
  Found by:	Coverity Prevent[tm] (CID 3423)

Modified:
  head/sys/dev/acpi_support/acpi_hp.c

Modified: head/sys/dev/acpi_support/acpi_hp.c
==============================================================================
--- head/sys/dev/acpi_support/acpi_hp.c	Fri Jun 11 17:38:24 2010	(r209054)
+++ head/sys/dev/acpi_support/acpi_hp.c	Fri Jun 11 18:19:23 2010	(r209055)
@@ -905,7 +905,7 @@ acpi_hp_get_cmi_block(device_t wmi_dev, 
 		return (-EINVAL);
 	}
 	obj = out.Pointer;
-	if (!obj && obj->Type != ACPI_TYPE_PACKAGE) {
+	if (!obj || obj->Type != ACPI_TYPE_PACKAGE) {
 		acpi_hp_free_buffer(&out);
 		return (-EINVAL);
 	}