From: Singh, Brijesh <brijesh.singh@xxxxxxx>
commit f5a2aeb8b254c764772729a6e48d4e0c914bb56a upstream.
Currently, we free the psp_master if the PLATFORM_INIT fails during the
SEV FW probe. If psp_master is freed then driver does not invoke the PSP
FW. As per SEV FW spec, there are several commands (PLATFORM_RESET,
PLATFORM_STATUS, GET_ID etc) which can be executed in the UNINIT state
We should not free the psp_master when PLATFORM_INIT fails.
Fixes: 200664d5237f ("crypto: ccp: Add SEV support")
Cc: Tom Lendacky <thomas.lendacky@xxxxxxx>
Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: Gary Hook <gary.hook@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # 4.19.y
Signed-off-by: Brijesh Singh <brijesh.singh@xxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/crypto/ccp/psp-dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/crypto/ccp/psp-dev.c
+++ b/drivers/crypto/ccp/psp-dev.c
@@ -972,7 +972,7 @@ void psp_pci_init(void)
rc = sev_platform_init(&error);
if (rc) {
dev_err(sp->dev, "SEV: failed to INIT error %#x\n", error);
- goto err;
+ return;
}
dev_info(sp->dev, "SEV API:%d.%d build:%d\n", psp_master->api_major,
