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| author | Anton Tikhomirov <av.tikhomirov@samsung.com> | 2011-04-21 12:06:40 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-03 04:00:26 +0400 |
| commit | 26ab3d0ce95c270b1ca491d6970aa14852d8e5a3 (patch) | |
| tree | e2e09d71f485a3e2415a57ec50a227740771f5f5 /drivers/usb/gadget | |
| parent | a3395f0dd016f18273eac8e689e1e81e075e025e (diff) | |
| download | linux-26ab3d0ce95c270b1ca491d6970aa14852d8e5a3.tar.xz | |
USB: s3c-hsotg: Fix control request processing
UDC driver does not need to generate reply to host if request is
delivered to gadget. This is gadget's responsibility. This commit
fixes that.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Reviewed-by: Kyoungil Kim<ki0351.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/s3c-hsotg.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index d7a279bb51dc..cbbc33677fd4 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -1055,8 +1055,10 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value); static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg, struct usb_ctrlrequest *ctrl) { + struct s3c_hsotg_ep *ep0 = &hsotg->eps[0]; bool set = (ctrl->bRequest == USB_REQ_SET_FEATURE); struct s3c_hsotg_ep *ep; + int ret; dev_dbg(hsotg->dev, "%s: %s_FEATURE\n", __func__, set ? "SET" : "CLEAR"); @@ -1072,6 +1074,13 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg, switch (le16_to_cpu(ctrl->wValue)) { case USB_ENDPOINT_HALT: s3c_hsotg_ep_sethalt(&ep->ep, set); + + ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0); + if (ret) { + dev_err(hsotg->dev, + "%s: failed to send reply\n", __func__); + return ret; + } break; default: @@ -1148,14 +1157,6 @@ static void s3c_hsotg_process_control(struct s3c_hsotg *hsotg, dev_dbg(hsotg->dev, "driver->setup() ret %d\n", ret); } - if (ret > 0) { - if (!ep0->dir_in) { - /* need to generate zlp in reply or take data */ - /* todo - deal with any data we might be sent? */ - ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0); - } - } - /* the request is either unhandlable, or is not formatted correctly * so respond with a STALL for the status stage to indicate failure. */ |