From f0df2d6b52ad7db5edf56909509d51be66fe90be Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Wed, 20 Aug 2008 16:41:45 -0700 Subject: [PATCH] acpi: add checking for NULL early param The early_param handling function could recieve NULL pointer as argument in case if user didn't enter parameter value. So we have to be ready for a such situation and do check for NULL pointer if needed. Signed-off-by: Cyrill Gorcunov Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Andi Kleen --- drivers/acpi/tables.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index c3419182c9a7..775c97a282bd 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -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); -- 2.20.1