Description: rtlwifi: prevent memory leak in rtl_usb_probe
References:
 https://github.com/torvalds/linux/commit/3f93616951138a598d930dcaec40f2bfd9ce43bb
Notes:
 bwh> These are potential memory leaks on probe, which are not a vulnerability.
Bugs:
upstream: released (5.5-rc1) [3f93616951138a598d930dcaec40f2bfd9ce43bb]
4.19-upstream-stable: released (4.19.92) [3717a450f83945c481059a6921440e5e6fe3c856]
4.9-upstream-stable: released (4.9.208) [4a06822bba46026212c06076284b940c0864bae4]
3.16-upstream-stable: ignored "Not a real issue"
sid: released (5.4.8-1)
4.19-buster-security: released (4.19.98-1)
4.9-stretch-security: released (4.9.210-1)
3.16-jessie-security: ignored "Not a real issue"