Then why does line 278 right below it check for NULL?

On Thu, Nov 12, 2020 at 5:56 PM Greg Kroah-Hartman
[off-list ref] wrote:

On Thu, Nov 12, 2020 at 05:13:30PM +0000, John Boero wrote:

quoted

Yes the patch is backwards sorry.  Testing alt proposal from
stern@rowland.harvard.edu.  It may be a buggy driver
but it would be nice if a buggy driver couldn't bring down
the entire usb core. lsusb hangs until reboot or reset of usb.

buggy kernel drivers can do anything, including deleting the contents of
your disk.  We don't protect the kernel from itself, sorry :)

good luck!

greg k-h