usb: gadget: f_hid: check return value of class_create
class_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>
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@ -742,6 +742,10 @@ int __init ghid_setup(struct usb_gadget *g, int count)
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dev_t dev;
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hidg_class = class_create(THIS_MODULE, "hidg");
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if (IS_ERR(hidg_class)) {
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hidg_class = NULL;
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return PTR_ERR(hidg_class);
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}
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status = alloc_chrdev_region(&dev, 0, count, "hidg");
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if (!status) {
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