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authorCyrill Gorcunov <gorcunov@gmail.com>2008-08-20 16:41:45 -0700
committerAndi Kleen <ak@linux.intel.com>2008-08-21 08:45:39 +0200
commitf0df2d6b52ad7db5edf56909509d51be66fe90be (patch)
tree435643478dd7d18449bccc602abda1fee4e13d98 /drivers/acpi/tables.c
parent1371c893ff9de0d57fa5b5cf0255d66b8849e13d (diff)
downloadlinux-linaro-stable-f0df2d6b52ad7db5edf56909509d51be66fe90be.tar.gz
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 <gorcunov@gmail.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'drivers/acpi/tables.c')
-rw-r--r--drivers/acpi/tables.c2
1 files changed, 2 insertions, 0 deletions
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);