kvm: svm: Fix gctx page leak on invalid inputs

Ensure that snp gctx page allocation is adequately deallocated on
failure during snp_launch_start.

Fixes: 136d8bc931c8 ("KVM: SEV: Add KVM_SEV_SNP_LAUNCH_START command")

CC: Sean Christopherson <[email protected]>
CC: Paolo Bonzini <[email protected]>
CC: Thomas Gleixner <[email protected]>
CC: Ingo Molnar <[email protected]>
CC: Borislav Petkov <[email protected]>
CC: Dave Hansen <[email protected]>
CC: Ashish Kalra <[email protected]>
CC: Tom Lendacky <[email protected]>
CC: John Allen <[email protected]>
CC: Herbert Xu <[email protected]>
CC: "David S. Miller" <[email protected]>
CC: Michael Roth <[email protected]>
CC: Luis Chamberlain <[email protected]>
CC: Russ Weight <[email protected]>
CC: Danilo Krummrich <[email protected]>
CC: Greg Kroah-Hartman <[email protected]>
CC: "Rafael J. Wysocki" <[email protected]>
CC: Tianfei zhang <[email protected]>
CC: Alexey Kardashevskiy <[email protected]>

Signed-off-by: Dionna Glaze <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>

0 files changed, 0 insertions, 0 deletions