From 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 15 Dec 2015 14:52:16 -0300 Subject: Linux-libre 4.3.2-gnu --- drivers/usb/gadget/legacy/mass_storage.c | 41 +++++++++++++++----------------- 1 file changed, 19 insertions(+), 22 deletions(-) (limited to 'drivers/usb/gadget/legacy/mass_storage.c') diff --git a/drivers/usb/gadget/legacy/mass_storage.c b/drivers/usb/gadget/legacy/mass_storage.c index e7bfb081f..bda3c5191 100644 --- a/drivers/usb/gadget/legacy/mass_storage.c +++ b/drivers/usb/gadget/legacy/mass_storage.c @@ -64,21 +64,7 @@ static struct usb_device_descriptor msg_device_desc = { .bNumConfigurations = 1, }; -static struct usb_otg_descriptor otg_descriptor = { - .bLength = sizeof otg_descriptor, - .bDescriptorType = USB_DT_OTG, - - /* - * REVISIT SRP-only hardware is possible, although - * it would not be called "OTG" ... - */ - .bmAttributes = USB_OTG_SRP | USB_OTG_HNP, -}; - -static const struct usb_descriptor_header *otg_desc[] = { - (struct usb_descriptor_header *) &otg_descriptor, - NULL, -}; +static const struct usb_descriptor_header *otg_desc[2]; static struct usb_string strings_dev[] = { [USB_GADGET_MANUFACTURER_IDX].s = "", @@ -191,10 +177,6 @@ static int msg_bind(struct usb_composite_dev *cdev) if (status) goto fail; - status = fsg_common_set_nluns(opts->common, config.nluns); - if (status) - goto fail_set_nluns; - fsg_common_set_ops(opts->common, &ops); status = fsg_common_set_cdev(opts->common, cdev, config.can_stall); @@ -214,9 +196,20 @@ static int msg_bind(struct usb_composite_dev *cdev) goto fail_string_ids; msg_device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; + if (gadget_is_otg(cdev->gadget) && !otg_desc[0]) { + struct usb_descriptor_header *usb_desc; + + usb_desc = usb_otg_descriptor_alloc(cdev->gadget); + if (!usb_desc) + goto fail_string_ids; + usb_otg_descriptor_init(cdev->gadget, usb_desc); + otg_desc[0] = usb_desc; + otg_desc[1] = NULL; + } + status = usb_add_config(cdev, &msg_config_driver, msg_do_config); if (status < 0) - goto fail_string_ids; + goto fail_otg_desc; usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&cdev->gadget->dev, @@ -224,11 +217,12 @@ static int msg_bind(struct usb_composite_dev *cdev) set_bit(0, &msg_registered); return 0; +fail_otg_desc: + kfree(otg_desc[0]); + otg_desc[0] = NULL; fail_string_ids: fsg_common_remove_luns(opts->common); fail_set_cdev: - fsg_common_free_luns(opts->common); -fail_set_nluns: fsg_common_free_buffers(opts->common); fail: usb_put_function_instance(fi_msg); @@ -243,6 +237,9 @@ static int msg_unbind(struct usb_composite_dev *cdev) if (!IS_ERR(fi_msg)) usb_put_function_instance(fi_msg); + kfree(otg_desc[0]); + otg_desc[0] = NULL; + return 0; } -- cgit v1.2.3-54-g00ecf