[PATCH] usb: host: ohci-tmio: check return value after calling platform_get_resource()
From: Yang Yingliang <hidden>
Date: 2021-09-15 03:40:39
Also in:
lkml
Subsystem:
the rest, usb ohci driver, usb subsystem · Maintainers:
Linus Torvalds, Alan Stern, Greg Kroah-Hartman
It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value. Signed-off-by: Yang Yingliang <redacted> --- drivers/usb/host/ohci-tmio.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
index 08ec2ab0d95a..68e769b82061 100644
--- a/drivers/usb/host/ohci-tmio.c
+++ b/drivers/usb/host/ohci-tmio.c@@ -202,6 +202,9 @@ static int ohci_hcd_tmio_drv_probe(struct platform_device *dev) if (!cell) return -EINVAL; + if (!regs || !config || !sram) + return -EINVAL; + if (irq < 0) return irq;
--
2.25.1