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usb: gadget: f_hid: check return value of device_create

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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>
This commit is contained in:
Andrzej Pietrasiewicz 2014-11-06 11:11:57 +01:00 committed by Felipe Balbi
parent 0652940732
commit 634060870a
1 changed files with 9 additions and 2 deletions
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11
drivers/usb/gadget/function/f_hid.c
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@ -556,6 +556,7 @@ static int __init hidg_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_ep *ep;
struct f_hidg *hidg = func_to_hidg(f);
struct device *device;
int status;
dev_t dev;
@ -623,10 +624,16 @@ static int __init hidg_bind(struct usb_configuration *c, struct usb_function *f)
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: