ipw2x00: Fix potential NULL dereference in libipw_xmit()
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.198 by commit 8fb1b9beb085bb767ae43e441db5ac6fcd66a04d. For more details please see the references link.