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| author | Cyrill Gorcunov <gorcunov@gmail.com> | 2008-08-20 16:41:45 -0700 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2008-08-21 08:45:39 +0200 |
| commit | f0df2d6b52ad7db5edf56909509d51be66fe90be (patch) | |
| tree | 435643478dd7d18449bccc602abda1fee4e13d98 | |
| parent | 1371c893ff9de0d57fa5b5cf0255d66b8849e13d (diff) | |
| download | lwn-f0df2d6b52ad7db5edf56909509d51be66fe90be.tar.gz lwn-f0df2d6b52ad7db5edf56909509d51be66fe90be.zip | |
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>
| -rw-r--r-- | drivers/acpi/tables.c | 2 |
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); |