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)
