[dpdk-dev] [PATCH] crypto/qat: fix segmentation fault in QAT PMD

[Bernard Iremonger <bernard.iremonger@intel.com>]

While running the IPsec unit test program the following
segmentation fault is occurring:

Thread 1 "test" received signal SIGSEGV, Segmentation fault.
0x0000000000beaece in qat_sym_build_request(in_op=0x0,
out_msg=0x100450580 "", op_cookie=0x101c6fd80, qat_dev_gen=QAT_GEN1)
at /root/dpdk_ipsec_master-1/drivers/crypto/qat/qat_sym.c:165
165  if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {

Fixes: c0f87eb5252b ("cryptodev: change burst API to be crypto op oriented")
Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
---
 drivers/crypto/qat/qat_sym.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/crypto/qat/qat_sym.c b/drivers/crypto/qat/qat_sym.c
index 8801ca5..4a7d11e 100644
--- a/drivers/crypto/qat/qat_sym.c
+++ b/drivers/crypto/qat/qat_sym.c
@@ -162,6 +162,12 @@ qat_sym_build_request(void *in_op, uint8_t *out_msg,
 	struct qat_sym_op_cookie *cookie =
 				(struct qat_sym_op_cookie *)op_cookie;
 
+	if (op == NULL) {
+		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
+				"operation requests, op (%p) is NULL", op);
+		return -EINVAL;
+	}
+
 	if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
 		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
 				"operation requests, op (%p) is not a "
-- 
2.7.4