usb: gadget: renesas_usbhs: bugfix: care pipe direction

renesas_usbhs is caring pipe type and its direction.
but current usbhs_endpoint_alloc() didn't check direction.
this patch modify it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index b964f25..f8f612c 100644 (file)
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -355,6 +355,7 @@ static void usbhsh_device_free(struct usbhsh_hpriv *hpriv,
 struct usbhsh_ep *usbhsh_endpoint_alloc(struct usbhsh_hpriv *hpriv,
                                        struct usbhsh_device *udev,
                                        struct usb_host_endpoint *ep,
+                                       int dir_in_req,
                                        gfp_t mem_flags)
 {
        struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
@@ -364,27 +365,38 @@ struct usbhsh_ep *usbhsh_endpoint_alloc(struct usbhsh_hpriv *hpriv,
        struct usbhs_pipe *pipe, *best_pipe;
        struct device *dev = usbhsh_hcd_to_dev(hcd);
        struct usb_endpoint_descriptor *desc = &ep->desc;
-       int type, i;
+       int type, i, dir_in;
        unsigned int min_usr;
 
+       dir_in_req = !!dir_in_req;
+
        uep = kzalloc(sizeof(struct usbhsh_ep), mem_flags);
        if (!uep) {
                dev_err(dev, "usbhsh_ep alloc fail\n");
                return NULL;
        }
-       type = usb_endpoint_type(desc);
+
+       if (usb_endpoint_xfer_control(desc)) {
+               best_pipe = usbhsh_hpriv_to_dcp(hpriv);
+               goto usbhsh_endpoint_alloc_find_pipe;
+       }
 
        /*
         * find best pipe for endpoint
         * see
         *      HARDWARE LIMITATION
         */
+       type = usb_endpoint_type(desc);
        min_usr = ~0;
        best_pipe = NULL;
-       usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
+       usbhs_for_each_pipe(pipe, priv, i) {
                if (!usbhs_pipe_type_is(pipe, type))
                        continue;
 
+               dir_in = !!usbhs_pipe_is_dir_in(pipe);
+               if (0 != (dir_in - dir_in_req))
+                       continue;
+
                info = usbhsh_pipe_info(pipe);
 
                if (min_usr > info->usr_cnt) {
@@ -398,7 +410,7 @@ struct usbhsh_ep *usbhsh_endpoint_alloc(struct usbhsh_hpriv *hpriv,
                kfree(uep);
                return NULL;
        }
-
+usbhsh_endpoint_alloc_find_pipe:
        /*
         * init uep
         */
@@ -430,7 +442,7 @@ struct usbhsh_ep *usbhsh_endpoint_alloc(struct usbhsh_hpriv *hpriv,
 
        dev_dbg(dev, "%s [%d-%s](%p)\n", __func__,
                usbhsh_device_number(hpriv, udev),
-               usbhs_pipe_name(pipe), uep);
+               usbhs_pipe_name(uep->pipe), uep);
 
        return uep;
 }
@@ -722,11 +734,11 @@ static int usbhsh_urb_enqueue(struct usb_hcd *hcd,
        struct usbhsh_device *udev, *new_udev = NULL;
        struct usbhs_pipe *pipe;
        struct usbhsh_ep *uep;
+       int is_dir_in = usb_pipein(urb->pipe);
 
        int ret;
 
-       dev_dbg(dev, "%s (%s)\n",
-               __func__, usb_pipein(urb->pipe) ? "in" : "out");
+       dev_dbg(dev, "%s (%s)\n", __func__, is_dir_in ? "in" : "out");
 
        ret = usb_hcd_link_urb_to_ep(hcd, urb);
        if (ret)
@@ -749,7 +761,8 @@ static int usbhsh_urb_enqueue(struct usb_hcd *hcd,
         */
        uep = usbhsh_ep_to_uep(ep);
        if (!uep) {
-               uep = usbhsh_endpoint_alloc(hpriv, udev, ep, mem_flags);
+               uep = usbhsh_endpoint_alloc(hpriv, udev, ep,
+                                           is_dir_in, mem_flags);
                if (!uep)
                        goto usbhsh_urb_enqueue_error_free_device;
        }