[dpdk-dev] [PATCH 2/2] crypto/dpaa_sec: repair memory allocations

[Lukasz Wojciechowski <l.wojciechow@partner.samsung.com>]

This patch repairs 2 memory allocations issues:

1) possible leak of memory
    In cryptodev_dpaa_sec_probe() function in case of portal
    initialization failure, function exited without cleanup.

    The patch redirects flow to out label, which provides
    proper cleanup in case of error: freeing cryptodevice private
    data and releasing cryptodevice.

2) double free of cryptodev private data
    The function dpaa_sec_dev_init() in case of failure called
    dpaa_sec_uninit() which freed both private data and security
    context. However one layer above in cryptodev_dpaa_sec_probe()
    function, the private data were freed one more time.

    The patch limits cleanup of the dpaa_sec_dev_init() function
    to freeing only the security context.

Signed-off-by: Lukasz Wojciechowski <l.wojciechow@partner.samsung.com>
---
 drivers/crypto/dpaa_sec/dpaa_sec.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.c b/drivers/crypto/dpaa_sec/dpaa_sec.c
index 021a5639d..097ab8de9 100644
--- a/drivers/crypto/dpaa_sec/dpaa_sec.c
+++ b/drivers/crypto/dpaa_sec/dpaa_sec.c
@@ -3410,7 +3410,7 @@ dpaa_sec_dev_init(struct rte_cryptodev *cryptodev)
 init_error:
 	DPAA_SEC_ERR("driver %s: create failed\n", cryptodev->data->name);
 
-	dpaa_sec_uninit(cryptodev);
+	rte_free(cryptodev->security_ctx);
 	return -EFAULT;
 }
 
@@ -3467,7 +3467,7 @@ cryptodev_dpaa_sec_probe(struct rte_dpaa_driver *dpaa_drv __rte_unused,
 		retval = rte_dpaa_portal_init((void *)1);
 		if (retval) {
 			DPAA_SEC_ERR("Unable to initialize portal");
-			return retval;
+			goto out;
 		}
 	}
 
@@ -3476,13 +3476,15 @@ cryptodev_dpaa_sec_probe(struct rte_dpaa_driver *dpaa_drv __rte_unused,
 	if (retval == 0)
 		return 0;
 
+	retval = -ENXIO;
+out:
 	/* In case of error, cleanup is done */
 	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 		rte_free(cryptodev->data->dev_private);
 
 	rte_cryptodev_pmd_release_device(cryptodev);
 
-	return -ENXIO;
+	return retval;
 }
 
 static int
-- 
2.17.1