Check for NULL pointer in ecdev_receive().

2009-08-11 12:15:20 +00:00 · 2009-08-11 12:15:20 +00:00 · 4099c6905b
parent c2cf92f9ec
commit 4099c6905b
1 changed files with 6 additions and 0 deletions
--- a/master/device.c
+++ b/master/device.c
@ -506,6 +506,12 @@ void ecdev_receive(
 {
    const void *ec_data = data + ETH_HLEN;
    size_t ec_size = size - ETH_HLEN;
+
+    if (unlikely(!data)) {
+        EC_WARN("%s() called with NULL data.\n", __func__);
+        return;
+    }
+
    device->rx_count++;

    if (unlikely(device->master->debug_level > 1)) {