diff options
Diffstat (limited to 'drivers/platform/x86/intel/ifs/core.c')
| -rw-r--r-- | drivers/platform/x86/intel/ifs/core.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/platform/x86/intel/ifs/core.c b/drivers/platform/x86/intel/ifs/core.c index 27204e3d674d..206a617c2e02 100644 --- a/drivers/platform/x86/intel/ifs/core.c +++ b/drivers/platform/x86/intel/ifs/core.c @@ -4,6 +4,7 @@ #include <linux/module.h> #include <linux/kdev_t.h> #include <linux/semaphore.h> +#include <linux/slab.h> #include <asm/cpu_device_id.h> @@ -22,6 +23,7 @@ MODULE_DEVICE_TABLE(x86cpu, ifs_cpu_ids); static struct ifs_device ifs_device = { .data = { .integrity_cap_bit = MSR_INTEGRITY_CAPS_PERIODIC_BIST_BIT, + .test_num = 0, }, .misc = { .name = "intel_ifs_0", @@ -34,6 +36,7 @@ static int __init ifs_init(void) { const struct x86_cpu_id *m; u64 msrval; + int ret; m = x86_match_cpu(ifs_cpu_ids); if (!m) @@ -50,20 +53,26 @@ static int __init ifs_init(void) ifs_device.misc.groups = ifs_get_groups(); - if ((msrval & BIT(ifs_device.data.integrity_cap_bit)) && - !misc_register(&ifs_device.misc)) { - down(&ifs_sem); - ifs_load_firmware(ifs_device.misc.this_device); - up(&ifs_sem); - return 0; + if (!(msrval & BIT(ifs_device.data.integrity_cap_bit))) + return -ENODEV; + + ifs_device.data.pkg_auth = kmalloc_array(topology_max_packages(), sizeof(bool), GFP_KERNEL); + if (!ifs_device.data.pkg_auth) + return -ENOMEM; + + ret = misc_register(&ifs_device.misc); + if (ret) { + kfree(ifs_device.data.pkg_auth); + return ret; } - return -ENODEV; + return 0; } static void __exit ifs_exit(void) { misc_deregister(&ifs_device.misc); + kfree(ifs_device.data.pkg_auth); } module_init(ifs_init); |