qlcnic: prevent ->dcb use-after-free on qlcnicdcbenable() failure
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 v5.15.87 by commit 95df720e64a6409d8152827a776c43f615e3321a, it was introduced in version v3.14 by commit 3c44bba1d270cb1620b4fe76786d0968118cb86b. For more details please see the references link.