device: 0.838 graphic: 0.790 network: 0.765 ppc: 0.731 TCG: 0.730 files: 0.700 vnc: 0.634 socket: 0.610 architecture: 0.575 register: 0.573 VMM: 0.556 PID: 0.547 risc-v: 0.506 debug: 0.473 mistranslation: 0.471 semantic: 0.431 boot: 0.425 permissions: 0.405 i386: 0.400 x86: 0.364 arm: 0.350 kernel: 0.326 virtual: 0.312 performance: 0.223 user-level: 0.203 hypervisor: 0.189 assembly: 0.160 peripherals: 0.121 KVM: 0.070 Potential memory leak in virtio-crytpto Description of problem: There is a potential memory leak while using virtio-crypto with vhost-user backend. The problem is due to misuse of error_setg in [backends/cryptodev-vhost-user.c#L284](https://gitlab.com/qemu-project/qemu/-/blob/master/backends/cryptodev-vhost-user.c#L284). After invoking error_setg(&local_error, ...), current procedure should not return without freeing err object pointed by local_error. The same problem occured in cryptodev-builtin, which has been discussed in #2283 and fixed in f6abce29cc4afa0445cb3b29a265a114ac9fa744. The same fixes should be applied to cryptodev-vhost-user.