summaryrefslogtreecommitdiff
path: root/drivers/platform/x86/eeepc-laptop.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/platform/x86/eeepc-laptop.c')
-rw-r--r--drivers/platform/x86/eeepc-laptop.c5
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;
}