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From: Johan Hovold <johan@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org, Johan Hovold <johan@kernel.org>,
	stable <stable@vger.kernel.org>
Subject: [PATCH 2/2] USB: iowarrior: fix info ioctl on big-endian hosts
Date: Thu, 11 May 2017 11:36:02 +0200	[thread overview]
Message-ID: <20170511093602.20833-3-johan@kernel.org> (raw)
In-Reply-To: <20170511093602.20833-1-johan@kernel.org>

Drop erroneous le16_to_cpu when returning the USB device speed which is
already in host byte order.

Found using sparse:

	warning: cast to restricted __le16

Fixes: 946b960d13c1 ("USB: add driver for iowarrior devices.")
Cc: stable <stable@vger.kernel.org>     # 2.6.21
Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/usb/misc/iowarrior.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 77569531b78a..83b05a287b0c 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -554,7 +554,7 @@ static long iowarrior_ioctl(struct file *file, unsigned int cmd,
 			info.revision = le16_to_cpu(dev->udev->descriptor.bcdDevice);
 
 			/* 0==UNKNOWN, 1==LOW(usb1.1) ,2=FULL(usb1.1), 3=HIGH(usb2.0) */
-			info.speed = le16_to_cpu(dev->udev->speed);
+			info.speed = dev->udev->speed;
 			info.if_num = dev->interface->cur_altsetting->desc.bInterfaceNumber;
 			info.report_size = dev->report_size;
 
-- 
2.13.0

      parent reply	other threads:[~2017-05-11  9:36 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20170511093602.20833-1-johan@kernel.org>
2017-05-11  9:36 ` [PATCH 1/2] USB: chaoskey: fix Alea quirk on big-endian hosts Johan Hovold
2017-05-11  9:36 ` Johan Hovold [this message]

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