[patch 1/5] x86: ACPI - add checking for NULL early param

[Cyrill Gorcunov]

Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxx>
---

Index: linux-2.6.git/drivers/acpi/tables.c
====================================================================
--- linux-2.6.git.orig/drivers/acpi/tables.c	2008-01-21 23:14:47.000000000 +0300
+++ linux-2.6.git/drivers/acpi/tables.c	2008-07-05 12:24:16.000000000 +0400
@@ -300,6 +300,8 @@ int __init acpi_table_init(void)
 
 static int __init acpi_parse_apic_instance(char *str)
 {
+	if (!str)
+		return -EINVAL;
 
 	acpi_apic_instance = simple_strtoul(str, NULL, 0);
 

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