From: Singh, Brijesh brijesh.singh@amd.com
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@amd.com Cc: Herbert Xu herbert@gondor.apana.org.au Cc: Gary Hook gary.hook@amd.com Cc: stable@vger.kernel.org # 4.19.y Signed-off-by: Brijesh Singh brijesh.singh@amd.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- 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,