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author | Cyrill Gorcunov <gorcunov@gmail.com> | 2008-08-20 23:41:45 (GMT) |
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committer | Andi Kleen <ak@linux.intel.com> | 2008-08-21 06:45:39 (GMT) |
commit | f0df2d6b52ad7db5edf56909509d51be66fe90be (patch) | |
tree | 435643478dd7d18449bccc602abda1fee4e13d98 /drivers/acpi/tables.c | |
parent | 1371c893ff9de0d57fa5b5cf0255d66b8849e13d (diff) | |
download | linux-f0df2d6b52ad7db5edf56909509d51be66fe90be.tar.xz |
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.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index c341918..775c97a 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); |