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i386/sev: Move SEV_COMMON null check before dereferencing 

Fixes Coverity CID 1546886.

Fixes: 9861405a8f ("i386/sev: Invoke launch_updata_data() for SEV class")
Signed-off-by: Pankaj Gupta <pankaj.gupta@amd.com>
Message-ID: <20240607183611.1111100-3-pankaj.gupta@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Pankaj Gupta 2024-06-07 13:36:10 -05:00 committed by Paolo Bonzini
parent c94eb5db8e
commit 48779faef3
1 changed files with 2 additions and 1 deletions
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3
target/i386/sev.c
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@ -1529,11 +1529,12 @@ int
sev_encrypt_flash(hwaddr gpa, uint8_t *ptr, uint64_t len, Error **errp)
{
SevCommonState *sev_common = SEV_COMMON(MACHINE(qdev_get_machine())->cgs);
SevCommonStateClass *klass = SEV_COMMON_GET_CLASS(sev_common);
SevCommonStateClass *klass;
if (!sev_common) {
return 0;
}
klass = SEV_COMMON_GET_CLASS(sev_common);
/* if SEV is in update state then encrypt the data else do nothing */
if (sev_check_state(sev_common, SEV_STATE_LAUNCH_UPDATE)) {