linux-kernel - [PATCH] xhci: correct the usage of USB_CTRL_SET

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <1381281919.9531.12.camel@xiaojin>
Date:	Wed, 09 Oct 2013 09:25:19 +0800
From:	Xiao Jin <jin.xiao@...el.com>
To:	sarah.a.sharp@...ux.intel.com, gregkh@...uxfoundation.org,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, mingo@...e.hu, a.p.zijlstra@...llo.nl,
	rusty@...tcorp.com.au, william.douglas@...el.com,
	sboyd@...eaurora.org, jslaby@...e.cz
Subject: [PATCH] xhci: correct the usage of USB_CTRL_SET_TIMEOUT

From: xiao jin <jin.xiao@...el.com>
Date: Wed, 9 Oct 2013 09:09:46 +0800
Subject: [PATCH] xhci: correct the usage of USB_CTRL_SET_TIMEOUT

The usage of USB_CTRL_SET_TIMEOUT is incorrect. The
definition of USB_CTRL_SET_TIMEOUT is 5000ms. The
input timeout to wait_for_completion_interruptible_timeout
is jiffies. That makes the timeout be longer than what
we want, such as 50s in some platform.

The patch is to convert USB_CTRL_SET_TIMEOUT to jiffies as
command completion event timeout.

Signed-off-by: xiao jin <jin.xiao@...el.com>
---
 drivers/usb/host/xhci-hub.c |    2 +-
 drivers/usb/host/xhci.c     |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 1d35459..78cf294 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -295,7 +295,7 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
 	/* Wait for last stop endpoint command to finish */
 	timeleft = wait_for_completion_interruptible_timeout(
 			cmd->completion,
-			USB_CTRL_SET_TIMEOUT);
+			msecs_to_jiffies(USB_CTRL_SET_TIMEOUT));
 	if (timeleft <= 0) {
 		xhci_warn(xhci, "%s while waiting for stop endpoint command\n",
 				timeleft == 0 ? "Timeout" : "Signal");
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 9478caa..f9ebc72 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3486,7 +3486,7 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev)
 	/* Wait for the Reset Device command to finish */
 	timeleft = wait_for_completion_interruptible_timeout(
 			reset_device_cmd->completion,
-			USB_CTRL_SET_TIMEOUT);
+			msecs_to_jiffies(USB_CTRL_SET_TIMEOUT));
 	if (timeleft <= 0) {
 		xhci_warn(xhci, "%s while waiting for reset device command\n",
 				timeleft == 0 ? "Timeout" : "Signal");
-- 
1.7.1



--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/