Commit de2d1a7e authored Jan 06, 2014 by tangchen Committed by Rafael J. Wysocki Jan 06, 2014

ACPI / tables: Check if id is NULL in acpi_table_parse()



strncmp() does not check if the params are NULL. In acpi_table_parse(),
if @id is NULL, the kernel will panic.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 6a368751

drivers/acpi/tables.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -293,7 +293,7 @@ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler)
		if (acpi_disabled)
		return -ENODEV;

		if (!handler)
		if (!id \|\| !handler)
		return -EINVAL;

		if (strncmp(id, ACPI_SIG_MADT, 4) == 0)