[PATCH v2 2/2] i386/sev: Nitpick at the error message's output

[Hyman Huang]

The incorrect error message was produced as a result of
the return number being disregarded on the sev_kvm_init
failure path.

For instance, when a user's failure to launch a SEV guest
is caused by an incorrect IOCTL, the following message is
reported:

kvm: sev_kvm_init: failed to initialize ret=-25 fw_error=0
kvm: failed to initialize kvm: Operation not permitted

While the error message's accurate output should be:

kvm: sev_kvm_init: failed to initialize ret=-25 fw_error=0
kvm: failed to initialize kvm: Inappropriate ioctl for device

Fix this by returning the return number directly on the
failure path.

Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: 
<c5033954155dfe256f650fc9ca2084c688356317.1704469721.git.yong.huang@smartx.com>
---
 target/i386/sev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/i386/sev.c b/target/i386/sev.c
index 96eff73001..3fef8cf163 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -1023,7 +1023,7 @@ int sev_kvm_init(ConfidentialGuestSupport *cgs, Error 
**errp)
 err:
     sev_guest = NULL;
     ram_block_discard_disable(false);
-    return -1;
+    return ret;
 }
 
 int
-- 
2.39.1