This is a note to let you know that I've just added the patch titled atm: firestream: check the return value of ioremap() in fs_init() to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: atm-firestream-check-the-return-value-of-ioremap-in-.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 19ca1f47d62da88f527313ae54c85aca8c735511 Author: Jia-Ju Bai <baijiaju1990@xxxxxxxxx> Date: Fri Feb 25 04:52:30 2022 -0800 atm: firestream: check the return value of ioremap() in fs_init() [ Upstream commit d4e26aaea7f82ba884dcb4acfe689406bc092dc3 ] The function ioremap() in fs_init() can fail, so its return value should be checked. Reported-by: TOTE Robot <oslab@xxxxxxxxxxxxxxx> Signed-off-by: Jia-Ju Bai <baijiaju1990@xxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> 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);