From: Robert Baldyga Date: Wed, 16 Sep 2015 10:10:53 +0000 (+0200) Subject: usb: gadget: f_printer: eliminate abuse of ep->driver data X-Git-Tag: firefly_0821_release~176^2~804^2~12^2~97 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ce21a9894208bf6fc3444837bb286f876d675205;p=firefly-linux-kernel-4.4.55.git usb: gadget: f_printer: eliminate abuse of ep->driver data Since ep->driver_data is not used for endpoint claiming, neither for enabled/disabled state storing, we can reduce number of places where we read or modify it's value, as now it has no particular meaning for function or framework logic. In case of f_printer we only need to store in ep->driver_data pointer to struct printer_dev, as it's used in rx_complete() and tx_complete() callbacks. All other uses of ep->driver_data are now meaningless and can be safely removed. Signed-off-by: Robert Baldyga Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/gadget/function/f_printer.c b/drivers/usb/gadget/function/f_printer.c index 8e2b6bea07bc..7fb3209ed52c 100644 --- a/drivers/usb/gadget/function/f_printer.c +++ b/drivers/usb/gadget/function/f_printer.c @@ -1039,12 +1039,10 @@ autoconf_fail: cdev->gadget->name); return -ENODEV; } - in_ep->driver_data = in_ep; /* claim */ out_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_out_desc); if (!out_ep) goto autoconf_fail; - out_ep->driver_data = out_ep; /* claim */ /* assumes that all endpoints are dual-speed */ hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;