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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-09-29 18:45:55 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-09-29 18:45:55 -0700
commitdf9b17f5868bdafd46cad18b08f1e70fa22b8854 (patch)
tree5667fbd3a0b915463f9558e3d40de309b7a7c0de /drivers/hwmon
parentf1ddc24c9e33813f74b871d73e4d795dcdb95a3c (diff)
parent15c03dd4859ab16f9212238f29dd315654aa94f6 (diff)
Merge 3.12-rc3 into usb-next
We want the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/applesmc.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 62c2e32e25ef..98814d12a604 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -525,16 +525,25 @@ static int applesmc_init_smcreg_try(void)
{
struct applesmc_registers *s = &smcreg;
bool left_light_sensor, right_light_sensor;
+ unsigned int count;
u8 tmp[1];
int ret;
if (s->init_complete)
return 0;
- ret = read_register_count(&s->key_count);
+ ret = read_register_count(&count);
if (ret)
return ret;
+ if (s->cache && s->key_count != count) {
+ pr_warn("key count changed from %d to %d\n",
+ s->key_count, count);
+ kfree(s->cache);
+ s->cache = NULL;
+ }
+ s->key_count = count;
+
if (!s->cache)
s->cache = kcalloc(s->key_count, sizeof(*s->cache), GFP_KERNEL);
if (!s->cache)