USB: auerswald possible memleak fix

fix possible memory leak in auerbuf_setup().

Regards,

	Mariusz Kozlowski
Signed-off-by: NMariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: NWolfgang Muees <wolfgang@iksw-muees.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/misc/auerswald.c

@@ -780,7 +780,7 @@ static int auerbuf_setup (pauerbufctl_t bcp, unsigned int numElements, unsigned
 
 bl_fail:/* not enough memory. Free allocated elements */
         dbg ("auerbuf_setup: no more memory");
-	kfree(bep);
+	auerbuf_free(bep);
         auerbuf_free_buffers (bcp);
         return -ENOMEM;
 }