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[5.11,096/329] crypto: ccp: Free SEV device if SEV init fails

Message ID 20210517140305.377136747@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg KH May 17, 2021, 2 p.m. UTC 
From: Sean Christopherson <seanjc@google.com>

[ Upstream commit b61a9071dc72a3c709192c0c00ab87c2b3de1d94 ]

Free the SEV device if later initialization fails.  The memory isn't
technically leaked as it's tracked in the top-level device's devres
list, but unless the top-level device is removed, the memory won't be
freed and is effectively leaked.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210406224952.4177376-2-seanjc@google.com>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/ccp/sev-dev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index 5b82ba7acc7c..21caed429cc5 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -989,7 +989,7 @@  int sev_dev_init(struct psp_device *psp)
 	if (!sev->vdata) {
 		ret = -ENODEV;
 		dev_err(dev, "sev: missing driver data\n");
-		goto e_err;
+		goto e_sev;
 	}
 
 	psp_set_sev_irq_handler(psp, sev_irq_handler, sev);
@@ -1004,6 +1004,8 @@  int sev_dev_init(struct psp_device *psp)
 
 e_irq:
 	psp_clear_sev_irq_handler(psp);
+e_sev:
+	devm_kfree(dev, sev);
 e_err:
 	psp->sev_data = NULL;