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path: root/drivers/hid/hid-multitouch.c
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Diffstat (limited to 'drivers/hid/hid-multitouch.c')
-rw-r--r--drivers/hid/hid-multitouch.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 2088ab4e5db5..a61ba42e1bff 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -637,10 +637,12 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
struct mt_device *td;
struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
- for (i = 0; mt_classes[i].name ; i++) {
- if (id->driver_data == mt_classes[i].name) {
- mtclass = &(mt_classes[i]);
- break;
+ if (id) {
+ for (i = 0; mt_classes[i].name ; i++) {
+ if (id->driver_data == mt_classes[i].name) {
+ mtclass = &(mt_classes[i]);
+ break;
+ }
}
}
@@ -648,6 +650,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
* that emit events over several HID messages.
*/
hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
+ hdev->quirks &= ~HID_QUIRK_MULTITOUCH;
td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
if (!td) {