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android_kernel_oneplus_msm8998/drivers/usb/renesas_usbhs
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Yoshihiro Shimoda 8565e4005e usb: renesas_usbhs: missed the "running" flag in usb_dmac with rx path 
commit 17aa31f13cad25daa19d3f923323f552e87bc874 upstream.

This fixes an issue that a gadget driver (usb_f_fs) is possible to
stop rx transactions after the usb-dmac is used because the following
functions missed to set/check the "running" flag.
 - usbhsf_dma_prepare_pop_with_usb_dmac()
 - usbhsf_dma_pop_done_with_usb_dmac()

So, if next transaction uses pio, the usbhsf_prepare_pop() can not
start the transaction because the "running" flag is 0.

Fixes: 8355b2b308 ("usb: renesas_usbhs: fix the behavior of some usbhs_pkt_handle")
Cc: <stable@vger.kernel.org> # v3.19+
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>
2018-02-28 10:17:23 +01:00
..
common.c
common.h
fifo.c usb: renesas_usbhs: missed the "running" flag in usb_dmac with rx path 2018-02-28 10:17:23 +01:00
fifo.h
Kconfig
Makefile
mod.c
mod.h
mod_gadget.c
mod_host.c
pipe.c
pipe.h
rcar2.c
rcar2.h