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        <amadeuszx.slawinski@linux.intel.com>
To:     alsa-devel@alsa-project.org
Cc:     Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
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        Jie Yang <yang.jie@linux.intel.com>,
        Cezary Rojewski <cezary.rojewski@intel.com>,
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        =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?= 
        <amadeuszx.slawinski@intel.com>
Subject: [PATCH 2/6] ASoC: Intel: Fix use of potentially uninitialized variable
Date:   Tue, 27 Aug 2019 16:17:08 +0200
Message-Id: <20190827141712.21015-3-amadeuszx.slawinski@linux.intel.com>
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From: Amadeusz Sławiński <amadeuszx.slawinski@intel.com>

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>
---
 sound/soc/intel/common/sst-ipc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/intel/common/sst-ipc.c b/sound/soc/intel/common/sst-ipc.c
index 1186a03a88d6..6068bb697e22 100644
--- a/sound/soc/intel/common/sst-ipc.c
+++ b/sound/soc/intel/common/sst-ipc.c
@@ -223,6 +223,8 @@ struct ipc_message *sst_ipc_reply_find_msg(struct sst_generic_ipc *ipc,
 
 	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",
-- 
2.17.1