This is a note to let you know that I've just added the patch titled usb: host: ohci-tmio: check return value after calling platform_get_resource() to the 5.4-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: usb-host-ohci-tmio-check-return-value-after-calling-.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 89de92859abbf34444c1f2441d946bee05683960 Author: Yang Yingliang <yangyingliang@xxxxxxxxxx> Date: Mon Oct 11 21:49:20 2021 +0800 usb: host: ohci-tmio: check return value after calling platform_get_resource() [ Upstream commit 9eff2b2e59fda25051ab36cd1cb5014661df657b ] It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value. Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx> Link: https://lore.kernel.org/r/20211011134920.118477-1-yangyingliang@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c index fed43c6dd85cc..b611c8b09a89f 100644 --- a/drivers/usb/host/ohci-tmio.c +++ b/drivers/usb/host/ohci-tmio.c @@ -199,7 +199,7 @@ static int ohci_hcd_tmio_drv_probe(struct platform_device *dev) if (usb_disabled()) return -ENODEV; - if (!cell) + if (!cell || !regs || !config || !sram) return -EINVAL; if (irq < 0)