diff options
| -rw-r--r-- | drivers/char/diag/diag_dci.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/char/diag/diag_dci.c b/drivers/char/diag/diag_dci.c index cf2e08f65b64..1fe7fa0debcc 100644 --- a/drivers/char/diag/diag_dci.c +++ b/drivers/char/diag/diag_dci.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2012-2019, The Linux Foundation. All rights reserved. +/* Copyright (c) 2012-2021, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -1061,6 +1061,11 @@ void extract_dci_pkt_rsp(unsigned char *buf, int len, int data_source, return; } + if (token != entry->client_info.token) { + mutex_unlock(&driver->dci_mutex); + return; + } + mutex_lock(&entry->buffers[data_source].buf_mutex); rsp_buf = entry->buffers[data_source].buf_cmd; |