linux-kernel - [PATCH] usb: usbip: Convert timers to use timer

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Date:   Tue, 24 Oct 2017 03:09:05 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Valentina Manea <valentina.manea.m@...il.com>,
        Shuah Khan <shuah@...nel.org>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] usb: usbip: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Valentina Manea <valentina.manea.m@...il.com>
Cc: Shuah Khan <shuah@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org
Signed-off-by: Kees Cook <keescook@...omium.org>
---
 drivers/usb/usbip/vudc_transfer.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/usbip/vudc_transfer.c b/drivers/usb/usbip/vudc_transfer.c
index 4cfd475ee865..718f1595a18e 100644
--- a/drivers/usb/usbip/vudc_transfer.c
+++ b/drivers/usb/usbip/vudc_transfer.c
@@ -311,9 +311,9 @@ static int transfer(struct vudc *udc,
 	return sent;
 }
 
-static void v_timer(unsigned long _vudc)
+static void v_timer(struct timer_list *t)
 {
-	struct vudc *udc = (struct vudc *) _vudc;
+	struct vudc *udc = from_timer(udc, t, tr_timer.timer);
 	struct transfer_timer *timer = &udc->tr_timer;
 	struct urbp *urb_p, *tmp;
 	unsigned long flags;
@@ -459,7 +459,7 @@ void v_init_timer(struct vudc *udc)
 {
 	struct transfer_timer *t = &udc->tr_timer;
 
-	setup_timer(&t->timer, v_timer, (unsigned long) udc);
+	timer_setup(&t->timer, v_timer, 0);
 	t->state = VUDC_TR_STOPPED;
 }
 
-- 
2.7.4


-- 
Kees Cook
Pixel Security