tools/power/x86/intel-speed-select: Fix off by one check

Change > MAX_DIE_PER_PACKAGE to >= MAX_DIE_PER_PACKAGE to prevent
accessing one element beyond the end of the array.

Fixes: 7fd786dfbd2c ("tools/power/x86/intel-speed-select: OOB daemon mode")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/tools/power/x86/intel-speed-select/isst-daemon.c b/tools/power/x86/intel-speed-select/isst-daemon.c
index dd37292..d0400c6 100644 (file)
--- a/tools/power/x86/intel-speed-select/isst-daemon.c
+++ b/tools/power/x86/intel-speed-select/isst-daemon.c
@@ -41,7 +41,7 @@ void process_level_change(int cpu)
        time_t tm;
        int ret;
 
-       if (pkg_id >= MAX_PACKAGE_COUNT || die_id > MAX_DIE_PER_PACKAGE) {
+       if (pkg_id >= MAX_PACKAGE_COUNT || die_id >= MAX_DIE_PER_PACKAGE) {
                debug_printf("Invalid package/die info for cpu:%d\n", cpu);
                return;
        }