lkml.org 
[lkml]   [2017]   [Oct]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4.9 004/105] usb: gadget: udc: renesas_usb3: fix for no-data control transfer
    Date
    4.9-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

    commit 4dcf4bab4a409e81284b8202137e4a85b96b34de upstream.

    When bRequestType & USB_DIR_IN is false and req.length is 0 in control
    transfer, since it means non-data, this driver should not set the mode
    as control write. So, this patch fixes it.

    Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller")
    Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
    Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/usb/gadget/udc/renesas_usb3.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    --- a/drivers/usb/gadget/udc/renesas_usb3.c
    +++ b/drivers/usb/gadget/udc/renesas_usb3.c
    @@ -991,7 +991,8 @@ static void usb3_start_pipe0(struct rene
    usb3_set_p0_con_for_ctrl_read_data(usb3);
    } else {
    usb3_clear_bit(usb3, P0_MOD_DIR, USB3_P0_MOD);
    - usb3_set_p0_con_for_ctrl_write_data(usb3);
    + if (usb3_req->req.length)
    + usb3_set_p0_con_for_ctrl_write_data(usb3);
    }

    usb3_p0_xfer(usb3_ep, usb3_req);

    \
     
     \ /
      Last update: 2017-10-10 22:58    [W:3.796 / U:0.036 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site