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Message-Id: <20220321133216.837289788@linuxfoundation.org>
Date: Mon, 21 Mar 2022 14:51:36 +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, TOTE Robot <oslab@...nghua.edu.cn>,
Jia-Ju Bai <baijiaju1990@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.9 06/16] atm: firestream: check the return value of ioremap() in fs_init()
From: Jia-Ju Bai <baijiaju1990@...il.com>
[ Upstream commit d4e26aaea7f82ba884dcb4acfe689406bc092dc3 ]
The function ioremap() in fs_init() can fail, so its return value should
be checked.
Reported-by: TOTE Robot <oslab@...nghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/atm/firestream.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 7cb2b863e653..7d74b7e1a837 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -1692,6 +1692,8 @@ static int fs_init(struct fs_dev *dev)
dev->hw_base = pci_resource_start(pci_dev, 0);
dev->base = ioremap(dev->hw_base, 0x1000);
+ if (!dev->base)
+ return 1;
reset_chip (dev);
--
2.34.1
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