compress/octeontx: fix null pointer dereference

[ upstream commit b072930 ]

Check for memory allocation failure is added to avoid null
pointer dereference.

Fixes: c378f08 ("compress/octeontx: add device setup ops")

Signed-off-by: Weiguo Li <liwg06@foxmail.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>

drivers/compress/octeontx/otx_zip_pmd.c

@@ -392,15 +392,19 @@ zip_pmd_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
 	}
 
 	name =  rte_malloc(NULL, RTE_COMPRESSDEV_NAME_MAX_LEN, 0);
+	if (name == NULL)
+		return (-ENOMEM);
 	snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN,
 		 "zip_pmd_%u_qp_%u",
 		 dev->data->dev_id, qp_id);
 
 	/* Allocate the queue pair data structure. */
 	qp = rte_zmalloc_socket(name, sizeof(*qp),
 				RTE_CACHE_LINE_SIZE, socket_id);
-	if (qp == NULL)
+	if (qp == NULL) {
+		rte_free(name);
 		return (-ENOMEM);
+	}
 
 	qp->name = name;