commit f14e9ad17f46051b02bffffac2036486097de19e upstream.

ffs_closed can race with configfs_rmdir which will call config_item_release, so
add an extra check to avoid calling the unregister_gadget_item with an null
gadget item.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 15bf722e6f6c0b884521a0363204532e849deb7f upstream.

ATOL FPrint fiscal printers require usb_clear_halt to be executed
to work properly. Add quirk to fix the issue.

Signed-off-by: Alexey Sokolov <sokolov@7pikes.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Johan writes:

USB-serial fixes for v4.1-rc7

Here are a couple of new device ids.

Signed-off-by: Johan Hovold <johan@kernel.org>

Added the USB serial device ID for the HubZ dual ZigBee
and Z-Wave radio dongle.

Signed-off-by: John D. Blair <johnb@candicontrols.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>

Felipe writes:

usb: fixes for v4.1-rc5

A few late important fixes which have been pending
on mailing list due to my vacations.

The important fixes are a fix for DEPCMD and DGCMD
status bitfields on DWC3, a couple fixes for Renesas
USB Controller, one of which prevents a broken DT
binding from reaching v4.1-final, and an old fix for
s3c2410-udc where pullup logic was reversed.

Signed-off-by: Felipe Balbi <balbi@ti.com>

This patch fixes an issue that sometimes this controller is not able
to complete the Control write status stage.

This driver should enable DCPCTR.CCPL and PID_BUF to complete the status
stage. However, if this driver detects the ctrl_stage interruption first
before the control write data is received, this driver will clear the
PID_BUF wrongly in the usbhsf_pio_try_pop(). To avoid this issue, this
patch doesn't clear the PID_BUF in the usbhsf_pio_try_pop().
(Since also the privious code doesn't disable the PID_BUF after a control
 transfer was finished, this patch doesn't have any side efforts.)

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

This patch fixes an issue for control write. When usbhsf_prepare_pop()
is called after this driver called a gadget setup function, this controller
doesn't receive the control write data. So, this patch adds a code to clear
the fifo for control write in usbhsf_prepare_pop().

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

when copying to iter the size can be different then the iov count,
the check for full iov is wrong and make any read on request which
is not the exactly size of iov to return -EFAULT.

So, just check the success of the copy.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>

Currently we always assign one of the two common implementations of
ep_offset and ep_select operations, overwriting any platform-specific
implementations.

Fixes: d026e9c76aac ("usb: musb: Change end point selection to use ...")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Felipe Balbi <balbi@ti.com>

Not checking config_ep_by_speed could lead to a kernel
NULL pointer dereference error in usb_ep_enable

Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>