usb: gadget: f_hid: check return value of device_create
device_create() might fail, so check its return value and react
appropriately.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c
index f3b3e19..ad53881 100644
--- a/drivers/usb/gadget/function/f_hid.c
+++ b/drivers/usb/gadget/function/f_hid.c
@@ -556,6 +556,7 @@
{
struct usb_ep *ep;
struct f_hidg *hidg = func_to_hidg(f);
+ struct device *device;
int status;
dev_t dev;
@@ -623,10 +624,16 @@
if (status)
goto fail_free_descs;
- device_create(hidg_class, NULL, dev, NULL, "%s%d", "hidg", hidg->minor);
+ device = device_create(hidg_class, NULL, dev, NULL,
+ "%s%d", "hidg", hidg->minor);
+ if (IS_ERR(device)) {
+ status = PTR_ERR(device);
+ goto del;
+ }
return 0;
-
+del:
+ cdev_del(&hidg->cdev);
fail_free_descs:
usb_free_all_descriptors(f);
fail: