since the arrays are declared as in_urbs[N_IN_URB]
and out_urbs[N_OUT_URB] both for loops, go one
over the end of the array. This fixes coverity id #555

This patch was already included in Linus' tree.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>