atm: firestream: check the return value of ioremap() in fs_init()

The function ioremap() in fs_init() can fail, so its return value should be checked. Reported-by: TOTE Robot <oslab@tsinghua.edu.cn> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Feb 28, 2022 · d4e26aa · d4e26aa
1 parent 90d4025
commit d4e26aa
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
@@ -1676,6 +1676,8 @@ 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);