linux-kernel - [PATCH 4.19 33/81] usb: renesas_usbhs: gadget: Do not discard queues in usb_ep_set

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Date:   Wed, 16 Oct 2019 14:50:44 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Subject: [PATCH 4.19 33/81] usb: renesas_usbhs: gadget: Do not discard queues in usb_ep_set_{halt,wedge}()

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

commit 1aae1394294cb71c6aa0bc904a94a7f2f1e75936 upstream.

The commit 97664a207bc2 ("usb: renesas_usbhs: shrink spin lock area")
had added a usbhsg_pipe_disable() calling into
__usbhsg_ep_set_halt_wedge() accidentally. But, this driver should
not call the usbhsg_pipe_disable() because the function discards
all queues. So, this patch removes it.

Fixes: 97664a207bc2 ("usb: renesas_usbhs: shrink spin lock area")
Cc: <stable@...r.kernel.org> # v3.1+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Link: https://lore.kernel.org/r/1569924633-322-2-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/renesas_usbhs/mod_gadget.c |    2 --
 1 file changed, 2 deletions(-)

--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -722,8 +722,6 @@ static int __usbhsg_ep_set_halt_wedge(st
 	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
 	unsigned long flags;
 
-	usbhsg_pipe_disable(uep);
-
 	dev_dbg(dev, "set halt %d (pipe %d)\n",
 		halt, usbhs_pipe_number(pipe));