[PATCH 14/26] usb: gadget: f_phonet: eliminate abuse of ep->driver data

Robert Baldyga
2015-09-15T14:28:44Z

In case of f_phonet we only need to store in ep->driver_data pointer to
struct f_phonet, as it's used in pn_tx_complete() and pn_rx_complete()
callbacks. All other uses of ep->driver_data are now meaningless and can
be safely removed.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
drivers/usb/gadget/function/f_phonet.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/usb/gadget/function/f_phonet.c b/drivers/usb/gadget/function/f_phonet.c
index c0c3ef2..62a1987 100644
--- a/drivers/usb/gadget/function/f_phonet.c
+++ b/drivers/usb/gadget/function/f_phonet.c
@@ -418,7 +418,7 @@ static int pn_set_alt(struct usb_function *f, unsigned intf, unsigned alt)

spin_lock(&port->lock);

- if (fp->in_ep->driver_data)
+ if (fp->in_ep->enabled)
__pn_reset(f);

if (alt == 1) {
@@ -530,13 +530,11 @@ static int pn_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto err;
fp->out_ep = ep;
- ep->driver_data = fp; /* Claim */

ep = usb_ep_autoconfig(gadget, &pn_fs_source_desc);
if (!ep)
goto err;
fp->in_ep = ep;
- ep->driver_data = fp; /* Claim */

pn_hs_sink_desc.bEndpointAddress = pn_fs_sink_desc.bEndpointAddress;
pn_hs_source_desc.bEndpointAddress = pn_fs_source_desc.bEndpointAddress;
@@ -575,10 +573,6 @@ err_req:
usb_ep_free_request(fp->out_ep, fp->out_reqv[i]);
usb_free_all_descriptors(f);
err:
- if (fp->out_ep)
- fp->out_ep->driver_data = NULL;
- if (fp->in_ep)
- fp->in_ep->driver_data = NULL;
ERROR(cdev, "USB CDC Phonet: cannot autoconfigure\n");
return status;
}
--
1.9.1