diff options
Diffstat (limited to 'drivers/platform/x86/eeepc-laptop.c')
| -rw-r--r-- | drivers/platform/x86/eeepc-laptop.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index e93a54edb17a..875a43fcaa86 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -332,9 +332,12 @@ struct eeepc_cpufv { static int get_cpufv(struct eeepc_laptop *eeepc, struct eeepc_cpufv *c) { c->cur = get_acpi(eeepc, CM_ASL_CPUFV); + if (c->cur < 0) + return -ENODEV; + c->num = (c->cur >> 8) & 0xff; c->cur &= 0xff; - if (c->cur < 0 || c->num <= 0 || c->num > 12) + if (c->num == 0 || c->num > 12) return -ENODEV; return 0; } |