| Message ID | 20210915034925.2399823-1-yangyingliang@huawei.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 14651496a3de6807a17c310f63c894ea0c5d858e |
| Headers | show |
| Series | usb: musb: tusb6010: check return value after calling platform_get_resource() | expand |
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index c42937692207..e0347780907f 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -1103,6 +1103,11 @@ static int tusb_musb_init(struct musb *musb) /* dma address for async dma */ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + pr_debug("no async dma resource?\n"); + ret = -ENODEV; + goto done; + } musb->async = mem->start; /* dma address for sync dma */
It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/usb/musb/tusb6010.c | 5 +++++ 1 file changed, 5 insertions(+)