diff options
Diffstat (limited to 'drivers/usb/gadget/function/f_hid.c')
| -rw-r--r-- | drivers/usb/gadget/function/f_hid.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c index 6be6009f911e..a8da3b4a2855 100644 --- a/drivers/usb/gadget/function/f_hid.c +++ b/drivers/usb/gadget/function/f_hid.c @@ -1269,18 +1269,14 @@ static struct usb_function *hidg_alloc(struct usb_function_instance *fi) opts = container_of(fi, struct f_hid_opts, func_inst); mutex_lock(&opts->lock); - ++opts->refcnt; device_initialize(&hidg->dev); hidg->dev.release = hidg_release; hidg->dev.class = hidg_class; hidg->dev.devt = MKDEV(major, opts->minor); ret = dev_set_name(&hidg->dev, "hidg%d", opts->minor); - if (ret) { - --opts->refcnt; - mutex_unlock(&opts->lock); - return ERR_PTR(ret); - } + if (ret) + goto err_unlock; hidg->bInterfaceSubClass = opts->subclass; hidg->bInterfaceProtocol = opts->protocol; @@ -1291,14 +1287,13 @@ static struct usb_function *hidg_alloc(struct usb_function_instance *fi) opts->report_desc_length, GFP_KERNEL); if (!hidg->report_desc) { - put_device(&hidg->dev); - --opts->refcnt; - mutex_unlock(&opts->lock); - return ERR_PTR(-ENOMEM); + ret = -ENOMEM; + goto err_put_device; } } hidg->use_out_ep = !opts->no_out_endpoint; + ++opts->refcnt; mutex_unlock(&opts->lock); hidg->func.name = "hid"; @@ -1313,6 +1308,12 @@ static struct usb_function *hidg_alloc(struct usb_function_instance *fi) hidg->qlen = 4; return &hidg->func; + +err_put_device: + put_device(&hidg->dev); +err_unlock: + mutex_unlock(&opts->lock); + return ERR_PTR(ret); } DECLARE_USB_FUNCTION_INIT(hid, hidg_alloc_inst, hidg_alloc); |