linux-kernel - Re: [linux-usb-devel] drivers/usb/misc/iowarrior.c: NULL dereference

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Date:	Mon, 19 Mar 2007 11:17:09 +0100
From:	Oliver Neukum <oneukum@...e.de>
To:	linux-usb-devel@...ts.sourceforge.net
Cc:	Adrian Bunk <bunk@...sta.de>,
	Christian Lucht <lucht@...emercs.com>,
	Robert Marquardt <marquardt@...emercs.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [linux-usb-devel] drivers/usb/misc/iowarrior.c: NULL dereference

Am Montag, 19. März 2007 10:25 schrieb Adrian Bunk:

> static ssize_t iowarrior_write(struct file *file,
>                                const char __user *user_buffer,
>                                size_t count, loff_t *ppos)
> {
> ...
>                 if (!int_out_urb) {
>                         retval = -ENOMEM;
>                         dbg("%s Unable to allocate urb ", __func__);
>                         goto error;
> ...
> error:
>         usb_buffer_free(dev->udev, dev->report_size, buf,
>                         int_out_urb->transfer_dma);
> ...                     ^^^^^^^^^^^^^^^^^^^^^^^^^

Yes, that's a bug. The fix is compiling.

	Regards
		Oliver
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