diff options
| -rw-r--r-- | hw/usb/dev-smartcard-reader.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c index 757b8b3f5a..49cb1829b5 100644 --- a/hw/usb/dev-smartcard-reader.c +++ b/hw/usb/dev-smartcard-reader.c @@ -813,7 +813,10 @@ static void ccid_write_data_block(USBCCIDState *s, uint8_t slot, uint8_t seq, if (p->b.bError) { DPRINTF(s, D_VERBOSE, "error %d\n", p->b.bError); } - memcpy(p->abData, data, len); + if (len) { + g_assert_nonnull(data); + memcpy(p->abData, data, len); + } ccid_reset_error_status(s); usb_wakeup(s->bulk, 0); } |