diff options
Diffstat (limited to 'drivers/hid/hid-core.c')
| -rw-r--r-- | drivers/hid/hid-core.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index f1aed5bbd000..75e7b8447bf7 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -101,7 +101,7 @@ static struct hid_field *hid_register_field(struct hid_report *report, unsigned field = kzalloc((sizeof(struct hid_field) + usages * sizeof(struct hid_usage) + - usages * sizeof(unsigned)), GFP_KERNEL); + 2 * usages * sizeof(unsigned int)), GFP_KERNEL); if (!field) return NULL; @@ -109,6 +109,7 @@ static struct hid_field *hid_register_field(struct hid_report *report, unsigned report->field[field->index] = field; field->usage = (struct hid_usage *)(field + 1); field->value = (s32 *)(field->usage + usages); + field->new_value = (s32 *)(field->value + usages); field->report = report; return field; @@ -1541,9 +1542,8 @@ static void hid_input_field(struct hid_device *hid, struct hid_field *field, __s32 max = field->logical_maximum; __s32 *value; - value = kmalloc_array(count, sizeof(__s32), GFP_ATOMIC); - if (!value) - return; + value = field->new_value; + memset(value, 0, count * sizeof(__s32)); for (n = 0; n < count; n++) { @@ -1557,7 +1557,7 @@ static void hid_input_field(struct hid_device *hid, struct hid_field *field, value[n] >= min && value[n] <= max && value[n] - min < field->maxusage && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) - goto exit; + return; } for (n = 0; n < count; n++) { @@ -1581,8 +1581,6 @@ static void hid_input_field(struct hid_device *hid, struct hid_field *field, } memcpy(field->value, value, count * sizeof(__s32)); -exit: - kfree(value); } /* |