diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2019-10-01 19:10:33 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-04 14:36:22 +0200 |
| commit | 4d599cd3a097a85a5c68a2c82b9a48cddf9953ec (patch) | |
| tree | 1c4c123d079a39d6caa5a7c395800663e0e4b004 /drivers/usb/renesas_usbhs/pipe.h | |
| parent | 1aae1394294cb71c6aa0bc904a94a7f2f1e75936 (diff) | |
usb: renesas_usbhs: gadget: Fix usb_ep_set_{halt,wedge}() behavior
According to usb_ep_set_halt()'s description,
__usbhsg_ep_set_halt_wedge() should return -EAGAIN if the IN endpoint
has any queue or data. Otherwise, this driver is possible to cause
just STALL without sending a short packet data on g_mass_storage driver,
and then a few resetting a device happens on a host side during
a usb enumaration.
Fixes: 2f98382dcdfe ("usb: renesas_usbhs: Add Renesas USBHS Gadget")
Cc: <stable@vger.kernel.org> # v3.0+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1569924633-322-3-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/renesas_usbhs/pipe.h')
| -rw-r--r-- | drivers/usb/renesas_usbhs/pipe.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h index 3080423e600c..3b130529408b 100644 --- a/drivers/usb/renesas_usbhs/pipe.h +++ b/drivers/usb/renesas_usbhs/pipe.h @@ -83,6 +83,7 @@ void usbhs_pipe_clear(struct usbhs_pipe *pipe); void usbhs_pipe_clear_without_sequence(struct usbhs_pipe *pipe, int needs_bfre, int bfre_enable); int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe); +bool usbhs_pipe_contains_transmittable_data(struct usbhs_pipe *pipe); void usbhs_pipe_enable(struct usbhs_pipe *pipe); void usbhs_pipe_disable(struct usbhs_pipe *pipe); void usbhs_pipe_stall(struct usbhs_pipe *pipe); |