From bd9ef7bf0c8e129f24b28366e6c7e9ea92a7aed6 Mon Sep 17 00:00:00 2001 From: Robert Baldyga Date: Thu, 19 Sep 2013 11:50:22 +0200 Subject: [PATCH] usb: gadget: s3c-hsotg: fix clear feature ENDPOINT_HALT All requests for endpoint are completed when it was halted and the halt was cleared by CLEAR_FEATURE, but not when new state is same as previous. Signed-off-by: Robert Baldyga Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi --- drivers/usb/gadget/s3c-hsotg.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index a854cb3c965fdb..70615585b48da6 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -1115,6 +1115,7 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg, bool set = (ctrl->bRequest == USB_REQ_SET_FEATURE); struct s3c_hsotg_ep *ep; int ret; + bool halted; dev_dbg(hsotg->dev, "%s: %s_FEATURE\n", __func__, set ? "SET" : "CLEAR"); @@ -1129,6 +1130,8 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg, switch (le16_to_cpu(ctrl->wValue)) { case USB_ENDPOINT_HALT: + halted = ep->halted; + s3c_hsotg_ep_sethalt(&ep->ep, set); ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0); @@ -1138,7 +1141,12 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg, return ret; } - if (!set) { + /* + * we have to complete all requests for ep if it was + * halted, and the halt was cleared by CLEAR_FEATURE + */ + + if (!set && halted) { /* * If we have request in progress, * then complete it