[PATCH AUTOSEL 4.14 07/14] usb: host: ohci-tmio: check return value after calling platform_get_resource()
From: Sasha Levin <sashal@kernel.org>
Date: 2021-11-09 22:42:12
Also in:
linux-usb, lkml
Subsystem:
the rest, usb ohci driver, usb subsystem · Maintainers:
Linus Torvalds, Alan Stern, Greg Kroah-Hartman
From: Yang Yingliang <redacted> [ 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@rowland.harvard.edu> Signed-off-by: Yang Yingliang <redacted> Link: https://lore.kernel.org/r/20211011134920.118477-1-yangyingliang@huawei.com (local) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/usb/host/ohci-tmio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
index 0cf4b6dc89720..4c7846dc5eed1 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)
--
2.33.0