Hi Greg,
On Mon, Feb 08, 2021 at 11:00:19AM +0100, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
>
> The patch below does not apply to the 4.14-stable tree.
> If someone wants it applied there, or to any other stable or longterm
> tree, then please email the backport, including the original git commit
> id to <stable@xxxxxxxxxxxxxxx>.
Here is the backport. Will apply to all branches till 4.4-stable.
--
Regards
Sudip
>From 5f0d0919f09f86b4b1365d46d9f7ddaa0ad3c15a Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Date: Mon, 1 Feb 2021 21:47:20 +0900
Subject: [PATCH] usb: renesas_usbhs: Clear pipe running flag in
usbhs_pkt_pop()
commit 9917f0e3cdba7b9f1a23f70e3f70b1a106be54a8 upstream
Should clear the pipe running flag in usbhs_pkt_pop(). Otherwise,
we cannot use this pipe after dequeue was called while the pipe was
running.
Fixes: 8355b2b3082d ("usb: renesas_usbhs: fix the behavior of some usbhs_pkt_handle")
Reported-by: Tho Vu <tho.vu.wh@xxxxxxxxxxx>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/1612183640-8898-1-git-send-email-yoshihiro.shimoda.uh@xxxxxxxxxxx
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
[sudip: adjust context]
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>
---
drivers/usb/renesas_usbhs/fifo.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 4a486fa5473e..3637d5edab74 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -137,6 +137,8 @@ struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt)
usbhsf_dma_unmap(pkt);
}
+ usbhs_pipe_running(pipe, 0);
+
__usbhsf_pkt_del(pkt);
}
--
2.30.0
