arm64: dts: rk3368: add iep device node

[firefly-linux-kernel-4.4.55.git] / drivers / hid / hid-picolcd_core.c

diff --git a/drivers/hid/hid-picolcd_core.c b/drivers/hid/hid-picolcd_core.c
index b48092d0e1394a73f4c4ef66a21bc490f4b686f0..c1b29a9eb41ab824fd643e920b9a16f30af29186 100644 (file)
--- a/drivers/hid/hid-picolcd_core.c
+++ b/drivers/hid/hid-picolcd_core.c
@@ -290,7 +290,7 @@ static ssize_t picolcd_operation_mode_store(struct device *dev,
                buf += 10;
                cnt -= 10;
        }
-       if (!report)
+       if (!report || report->maxfield != 1)
                return -EINVAL;
 
        while (cnt > 0 && (buf[cnt-1] == '\n' || buf[cnt-1] == '\r'))
@@ -350,6 +350,12 @@ static int picolcd_raw_event(struct hid_device *hdev,
        if (!data)
                return 1;
 
+       if (size > 64) {
+               hid_warn(hdev, "invalid size value (%d) for picolcd raw event (%d)\n",
+                               size, report->id);
+               return 0;
+       }
+
        if (report->id == REPORT_KEY_STATE) {
                if (data->input_keys)
                        ret = picolcd_raw_keypad(data, report, raw_data+1, size-1);