linux-kernel - [PATCH 4.14 152/242] speakup: fix uninitialized flush

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Date:   Mon, 28 Dec 2020 13:49:17 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hulk Robot <hulkci@...wei.com>,
        Samuel Thibault <samuel.thibault@...-lyon.org>,
        Yang Yingliang <yangyingliang@...wei.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 152/242] speakup: fix uninitialized flush_lock

From: Yang Yingliang <yangyingliang@...wei.com>

[ Upstream commit d1b928ee1cfa965a3327bbaa59bfa005d97fa0fe ]

The flush_lock is uninitialized, use DEFINE_SPINLOCK
to define and initialize flush_lock.

Fixes: c6e3fd22cd53 ("Staging: add speakup to the staging directory")
Reported-by: Hulk Robot <hulkci@...wei.com>
Reviewed-by: Samuel Thibault <samuel.thibault@...-lyon.org>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
Link: https://lore.kernel.org/r/20201117012229.3395186-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/staging/speakup/speakup_dectlk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/speakup/speakup_dectlk.c b/drivers/staging/speakup/speakup_dectlk.c
index f069954800226..53316b0c0b13c 100644
--- a/drivers/staging/speakup/speakup_dectlk.c
+++ b/drivers/staging/speakup/speakup_dectlk.c
@@ -46,7 +46,7 @@ static unsigned char get_index(struct spk_synth *synth);
 static int in_escape;
 static int is_flushing;
 
-static spinlock_t flush_lock;
+static DEFINE_SPINLOCK(flush_lock);
 static DECLARE_WAIT_QUEUE_HEAD(flush);
 
 static struct var_t vars[] = {
-- 
2.27.0