References: CVE-2013-0153 XSA-36 bnc#800275

# HG changeset patch
# User Boris Ostrovsky <boris.ostrovsky@amd.com>
# Date 1360073898 -3600
# Node ID 32d4516a97f0b22ed06155f7b8e0bff075024991
# Parent  2fdca30363f08026971c094e8a1a84e19ca3e55b
ACPI: acpi_table_parse() should return handler's error code

Currently, the error code returned by acpi_table_parse()'s handler
is ignored. This patch will propagate handler's return value to
acpi_table_parse()'s caller.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@amd.com>
Committed-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/drivers/acpi/tables.c
+++ b/xen/drivers/acpi/tables.c
@@ -267,7 +267,7 @@ acpi_table_parse_madt(enum acpi_madt_typ
  * @handler: handler to run
  *
  * Scan the ACPI System Descriptor Table (STD) for a table matching @id,
- * run @handler on it.  Return 0 if table found, return on if not.
+ * run @handler on it.
  */
 int __init acpi_table_parse(char *id, acpi_table_handler handler)
 {
@@ -282,8 +282,7 @@ int __init acpi_table_parse(char *id, ac
 		acpi_get_table(id, 0, &table);
 
 	if (table) {
-		handler(table);
-		return 0;
+		return handler(table);
 	} else
 		return 1;
 }