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From: Guenter Roeck <linux@roeck-us.net>
To: linux-usb <linux-usb@vger.kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"linux-watchdog@vger.kernel.org" <linux-watchdog@vger.kernel.org>
Subject: usb_control_msg and non-dma buffers
Date: Mon, 14 Oct 2013 08:47:36 -0700	[thread overview]
Message-ID: <525C1218.7060901@roeck-us.net> (raw)

Hi all,

I am getting the following smatch error in drivers/watchdog/pcwd_usb.c:

drivers/watchdog/pcwd_usb.c:257 usb_pcwd_send_command() error: doing dma on the stack (buf)

This is from a call to usb_control_msg().

Is this a false positive or a real problem that needs to be fixed ?

Thanks,
Guenter

             reply	other threads:[~2013-10-14 15:47 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-14 15:47 Guenter Roeck [this message]
2013-10-14 15:53 ` usb_control_msg and non-dma buffers Greg Kroah-Hartman

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