From: Amadeusz Sławiński amadeuszx.slawinski@intel.com
commit 810f3b860850148788fc1ed8a6f5f807199fed65 upstream.
If ipc->ops.reply_msg_match is NULL, we may end up using uninitialized mask value.
reported by smatch: sound/soc/intel/common/sst-ipc.c:266 sst_ipc_reply_find_msg() error: uninitialized symbol 'mask'.
Signed-off-by: Amadeusz Sławiński amadeuszx.slawinski@intel.com Link: https://lore.kernel.org/r/20190827141712.21015-3-amadeuszx.slawinski@linux.i... Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown broonie@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- sound/soc/intel/common/sst-ipc.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/sound/soc/intel/common/sst-ipc.c +++ b/sound/soc/intel/common/sst-ipc.c @@ -211,6 +211,8 @@ struct ipc_message *sst_ipc_reply_find_m
if (ipc->ops.reply_msg_match != NULL) header = ipc->ops.reply_msg_match(header, &mask); + else + mask = (u64)-1;
if (list_empty(&ipc->rx_list)) { dev_err(ipc->dev, "error: rx list empty but received 0x%llx\n",