KVM: SEV: use mutex guard in sev_mem_enc_ioctl()

Simplify the error paths in sev_mem_enc_ioctl() by using a mutex guard,
allowing early return instead of using gotos.

Signed-off-by: Carlos López <clopez@suse.de>
Link: https://patch.msgid.link/20260120201013.3931334-5-clopez@suse.de
Link: https://patch.msgid.link/20260310234829.2608037-18-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Carlos López 2026-03-10 16:48:25 -07:00 • committed by Sean Christopherson
commit 63e56d8425