diff --git a/rdma/res-cmid.c b/rdma/res-cmid.c
index 0b830088..0ee9c3d4 100644
--- a/rdma/res-cmid.c
+++ b/rdma/res-cmid.c
@@ -120,11 +120,8 @@ static int res_cm_id_line(struct rd *rd, const char *name, int idx,
 	char *comm = NULL;
 
 	if (!nla_line[RDMA_NLDEV_ATTR_RES_STATE] ||
-	    !nla_line[RDMA_NLDEV_ATTR_RES_PS] ||
-	    (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
-	     !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
+	    !nla_line[RDMA_NLDEV_ATTR_RES_PS])
 		return MNL_CB_ERROR;
-	}
 
 	if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
 		port = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]);
diff --git a/rdma/res-cq.c b/rdma/res-cq.c
index d2591fbe..6855e798 100644
--- a/rdma/res-cq.c
+++ b/rdma/res-cq.c
@@ -56,11 +56,8 @@ static int res_cq_line(struct rd *rd, const char *name, int idx,
 	uint32_t cqe;
 
 	if (!nla_line[RDMA_NLDEV_ATTR_RES_CQE] ||
-	    !nla_line[RDMA_NLDEV_ATTR_RES_USECNT] ||
-	    (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
-	     !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
+	    !nla_line[RDMA_NLDEV_ATTR_RES_USECNT])
 		return MNL_CB_ERROR;
-	}
 
 	cqe = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQE]);
 
diff --git a/rdma/res-mr.c b/rdma/res-mr.c
index f4a24dc1..c1b8069a 100644
--- a/rdma/res-mr.c
+++ b/rdma/res-mr.c
@@ -17,11 +17,8 @@ static int res_mr_line(struct rd *rd, const char *name, int idx,
 	uint32_t mrn = 0;
 	uint32_t pid = 0;
 
-	if (!nla_line[RDMA_NLDEV_ATTR_RES_MRLEN] ||
-	    (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
-	     !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
+	if (!nla_line[RDMA_NLDEV_ATTR_RES_MRLEN])
 		return MNL_CB_ERROR;
-	}
 
 	if (nla_line[RDMA_NLDEV_ATTR_RES_RKEY])
 		rkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RKEY]);
diff --git a/rdma/res-pd.c b/rdma/res-pd.c
index 07c836e8..6e5e4e6b 100644
--- a/rdma/res-pd.c
+++ b/rdma/res-pd.c
@@ -17,11 +17,8 @@ static int res_pd_line(struct rd *rd, const char *name, int idx,
 	uint32_t pdn = 0;
 	uint64_t users;
 
-	if (!nla_line[RDMA_NLDEV_ATTR_RES_USECNT] ||
-	    (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
-	     !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
+	if (!nla_line[RDMA_NLDEV_ATTR_RES_USECNT])
 		return MNL_CB_ERROR;
-	}
 
 	if (nla_line[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY])
 		local_dma_lkey = mnl_attr_get_u32(
diff --git a/rdma/res-qp.c b/rdma/res-qp.c
index 954e465d..e30d68ed 100644
--- a/rdma/res-qp.c
+++ b/rdma/res-qp.c
@@ -90,11 +90,8 @@ static int res_qp_line(struct rd *rd, const char *name, int idx,
 	if (!nla_line[RDMA_NLDEV_ATTR_RES_LQPN] ||
 	    !nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN] ||
 	    !nla_line[RDMA_NLDEV_ATTR_RES_TYPE] ||
-	    !nla_line[RDMA_NLDEV_ATTR_RES_STATE] ||
-	    (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
-	     !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
+	    !nla_line[RDMA_NLDEV_ATTR_RES_STATE])
 		return MNL_CB_ERROR;
-	}
 
 	if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
 		port = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]);
diff --git a/rdma/res.c b/rdma/res.c
index 6003006e..e8607808 100644
--- a/rdma/res.c
+++ b/rdma/res.c
@@ -211,6 +211,9 @@ char *get_task_name(uint32_t pid)
 	char *comm;
 	FILE *f;
 
+	if (!pid)
+		return NULL;
+
 	if (asprintf(&comm, "/proc/%d/comm", pid) < 0)
 		return NULL;