Subject: [PATCH AUTOSEL 5.10 12/20] atm: firestream: check the return value of ioremap() in fs_init()

From: Sasha Levin <[email-masked]>
Date: Wed, 9 Mar 2022 11:21:50 -0500

From: Jia-Ju Bai <[email-masked]>

[ Upstream commit d4e26aaea7f82ba884dcb4acfe689406bc092dc3 ]

The function ioremap() in fs_init() can fail, so its return value should
be checked.

Reported-by: TOTE Robot <[email-masked]>
Signed-off-by: Jia-Ju Bai <[email-masked]>
Signed-off-by: David S. Miller <[email-masked]>
Signed-off-by: Sasha Levin <[email-masked]>
---
 drivers/atm/firestream.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 0ddd611b4277..43a34aee33b8 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -1675,6 +1675,8 @@ 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