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path: root/drivers/crypto/ccp/sev-dev.c
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Diffstat (limited to 'drivers/crypto/ccp/sev-dev.c')
-rw-r--r--drivers/crypto/ccp/sev-dev.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index b8e02c3a1..bbfb0f288 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -515,10 +515,16 @@ EXPORT_SYMBOL_GPL(sev_platform_init);
static int __sev_platform_shutdown_locked(int *error)
{
- struct sev_device *sev = psp_master->sev_data;
+ struct psp_device *psp = psp_master;
+ struct sev_device *sev;
int ret;
- if (!sev || sev->state == SEV_STATE_UNINIT)
+ if (!psp || !psp->sev_data)
+ return 0;
+
+ sev = psp->sev_data;
+
+ if (sev->state == SEV_STATE_UNINIT)
return 0;
ret = __sev_do_cmd_locked(SEV_CMD_SHUTDOWN, NULL, error);