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From 179213798496448316547506da65dbd9fd741dfa Mon Sep 17 00:00:00 2001
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From: Atin Mukherjee <amukherj@redhat.com>
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Date: Wed, 24 Apr 2019 22:02:51 +0530
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Subject: [PATCH 436/449] glusterd: coverity fixes
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Addresses the following:
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* CID 1124776:  Resource leaks  (RESOURCE_LEAK) - Variable "aa" going out
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of scope leaks the storage it points to in glusterd-volgen.c
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* Bunch of CHECKED_RETURN defects in the callers of synctask_barrier_init
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* CID 1400742:  Program hangs  (LOCK) - adding annotation to fix this
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false positive
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> upstream patch link: https://review.gluster.org/#/c/glusterfs/+/22615
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> Updates: bz#789278
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> Change-Id: I02f16e7eeb8c5cf72f7d0b29d00df4f03b3718b3
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> Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
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BUG: 1787310
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Change-Id: I02f16e7eeb8c5cf72f7d0b29d00df4f03b3718b3
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Signed-off-by: Sanju Rakonde <srakonde@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/202626
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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 xlators/mgmt/glusterd/src/glusterd-handler.c |  6 ++++++
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 xlators/mgmt/glusterd/src/glusterd-mgmt.c    | 24 +++++++++++++++++++-----
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 xlators/mgmt/glusterd/src/glusterd-syncop.c  | 22 ++++++++++++++++++----
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 xlators/mgmt/glusterd/src/glusterd-volgen.c  |  5 +++--
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 4 files changed, 46 insertions(+), 11 deletions(-)
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diff --git a/xlators/mgmt/glusterd/src/glusterd-handler.c b/xlators/mgmt/glusterd/src/glusterd-handler.c
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index 1f31e72..b8799ab 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-handler.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-handler.c
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@@ -3458,6 +3458,12 @@ glusterd_friend_remove(uuid_t uuid, char *hostname)
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     ret = glusterd_peerinfo_cleanup(peerinfo);
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 out:
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     gf_msg_debug(THIS->name, 0, "returning %d", ret);
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+    /* We don't need to do a mutex unlock of peerinfo->delete_lock as the same
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+     * will be anyway destroyed within glusterd_peerinfo_cleanup, coverity
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+     * though cries about it
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+     */
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+    /* coverity[LOCK] */
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+
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     return ret;
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 }
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diff --git a/xlators/mgmt/glusterd/src/glusterd-mgmt.c b/xlators/mgmt/glusterd/src/glusterd-mgmt.c
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index a4915f3..1e185d7 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-mgmt.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-mgmt.c
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@@ -757,7 +757,10 @@ glusterd_mgmt_v3_initiate_lockdown(glusterd_op_t op, dict_t *dict,
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     /* Sending mgmt_v3 lock req to other nodes in the cluster */
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     gd_syncargs_init(&args, NULL);
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-    synctask_barrier_init((&args));
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+    ret = synctask_barrier_init((&args));
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+    if (ret)
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+        goto out;
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+
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     peer_cnt = 0;
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     RCU_READ_LOCK;
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@@ -1108,7 +1111,10 @@ glusterd_mgmt_v3_pre_validate(glusterd_op_t op, dict_t *req_dict,
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     /* Sending Pre Validation req to other nodes in the cluster */
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     gd_syncargs_init(&args, req_dict);
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-    synctask_barrier_init((&args));
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+    ret = synctask_barrier_init((&args));
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+    if (ret)
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+        goto out;
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+
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     peer_cnt = 0;
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     RCU_READ_LOCK;
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@@ -1458,7 +1464,10 @@ glusterd_mgmt_v3_brick_op(glusterd_op_t op, dict_t *op_ctx, dict_t *req_dict,
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     /* Sending brick op req to other nodes in the cluster */
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     gd_syncargs_init(&args, op_ctx);
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-    synctask_barrier_init((&args));
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+    ret = synctask_barrier_init((&args));
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+    if (ret)
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+        goto out;
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+
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     peer_cnt = 0;
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     RCU_READ_LOCK;
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@@ -1722,7 +1731,9 @@ glusterd_mgmt_v3_commit(glusterd_op_t op, dict_t *op_ctx, dict_t *req_dict,
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     /* Sending commit req to other nodes in the cluster */
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     gd_syncargs_init(&args, op_ctx);
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-    synctask_barrier_init((&args));
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+    ret = synctask_barrier_init((&args));
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+    if (ret)
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+        goto out;
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     peer_cnt = 0;
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     RCU_READ_LOCK;
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@@ -1963,7 +1974,10 @@ glusterd_mgmt_v3_post_validate(glusterd_op_t op, int32_t op_ret, dict_t *dict,
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     /* Sending Post Validation req to other nodes in the cluster */
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     gd_syncargs_init(&args, req_dict);
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-    synctask_barrier_init((&args));
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+    ret = synctask_barrier_init((&args));
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+    if (ret)
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+        goto out;
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+
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     peer_cnt = 0;
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     RCU_READ_LOCK;
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diff --git a/xlators/mgmt/glusterd/src/glusterd-syncop.c b/xlators/mgmt/glusterd/src/glusterd-syncop.c
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index 9e47d14..c78983a 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-syncop.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-syncop.c
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@@ -1191,7 +1191,12 @@ gd_lock_op_phase(glusterd_conf_t *conf, glusterd_op_t op, dict_t *op_ctx,
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     struct syncargs args = {0};
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     this = THIS;
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-    synctask_barrier_init((&args));
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+    GF_VALIDATE_OR_GOTO("glusterd", this, out);
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+
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+    ret = synctask_barrier_init((&args));
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+    if (ret)
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+        goto out;
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+
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     peer_cnt = 0;
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     RCU_READ_LOCK;
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@@ -1321,7 +1326,10 @@ stage_done:
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     }
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     gd_syncargs_init(&args, aggr_dict);
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-    synctask_barrier_init((&args));
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+    ret = synctask_barrier_init((&args));
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+    if (ret)
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+        goto out;
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+
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     peer_cnt = 0;
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     RCU_READ_LOCK;
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@@ -1449,7 +1457,10 @@ commit_done:
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     }
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     gd_syncargs_init(&args, op_ctx);
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-    synctask_barrier_init((&args));
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+    ret = synctask_barrier_init((&args));
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+    if (ret)
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+        goto out;
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+
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     peer_cnt = 0;
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     origin_glusterd = is_origin_glusterd(req_dict);
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@@ -1541,7 +1552,10 @@ gd_unlock_op_phase(glusterd_conf_t *conf, glusterd_op_t op, int *op_ret,
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         goto out;
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     }
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-    synctask_barrier_init((&args));
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+    ret = synctask_barrier_init((&args));
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+    if (ret)
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+        goto out;
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+
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     peer_cnt = 0;
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     if (cluster_lock) {
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diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c
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index 6852f8e..16346e7 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-volgen.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c
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@@ -4808,9 +4808,10 @@ nfs_option_handler(volgen_graph_t *graph, struct volopt_map_entry *vme,
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         if (ret != -1) {
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             ret = gf_canonicalize_path(vme->value);
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-            if (ret)
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+            if (ret) {
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+                GF_FREE(aa);
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                 return -1;
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-
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+            }
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             ret = xlator_set_option(xl, aa, ret, vme->value);
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             GF_FREE(aa);
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         }
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-- 
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1.8.3.1
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