Messages in this thread Patch in this message |  | | From | Tycho Andersen <> | | Subject | [PATCH v3 2/2] crypto/ccp: Skip SNP_INIT if preparation fails | | Date | Thu, 9 Apr 2026 13:56:02 -0600 |
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From: "Tycho Andersen (AMD)" <tycho@kernel.org>
If snp_prepare() failed SNP_INIT will fail, so skip it and return early. Note that this is not a change in initialization behavior: if SNP_INIT failed before this patch, it will still return an error __sev_snp_init_locked() and fail initialization of other SEV modes.
Signed-off-by: Tycho Andersen (AMD) <tycho@kernel.org> Reviewed-by: Nikunj A Dadhania <nikunj@amd.com> --- drivers/crypto/ccp/sev-dev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index 939fa8aa155c..a37922d3d230 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -1374,7 +1374,9 @@ static int __sev_snp_init_locked(int *error, unsigned int max_snp_asid) return -EOPNOTSUPP; } - snp_prepare(); + rc = snp_prepare(); + if (rc) + return rc; /* * Starting in SNP firmware v1.52, the SNP_INIT_EX command takes a list -- 2.53.0
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