fix all clang errors in xlator/protocol

Signed-off-by: Amar Tumballi <amar@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 1092 ()
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1092

3 files changed, 68 insertions, 52 deletions

diff --git a/xlators/protocol/client/src/client-handshake.c b/xlators/protocol/client/src/client-handshake.c
index 1cd25424f..9a806f7e9 100644
--- a/xlators/protocol/client/src/client-handshake.c
+++ b/xlators/protocol/client/src/client-handshake.c
@@ -126,13 +126,11 @@ client_start_ping (void *data)
         struct timeval           timeout     = {0, };
         call_frame_t            *frame       = NULL;
         int                      frame_count = 0;
-        rpc_transport_t         *trans       = NULL;
 
         this = data;
         conf  = this->private;
 
         conn = &conf->rpc->conn;
-        trans = conn->trans;
 
         if (conf->opt.ping_timeout == 0)
                 return;
@@ -256,15 +254,14 @@ out:
 
 
 int
-client3_getspec_cbk (struct rpc_req *req, struct iovec *iov, int count, void *myframe)
+client3_getspec_cbk (struct rpc_req *req, struct iovec *iov, int count,
+                     void *myframe)
 {
         gf_getspec_rsp           rsp   = {0,};
         call_frame_t            *frame = NULL;
-        clnt_conf_t             *conf = NULL;
         int                      ret   = 0;
 
         frame = myframe;
-        conf  = frame->this->private;
 
         if (-1 == req->rpc_status) {
                 rsp.op_ret   = -1;
@@ -385,12 +382,10 @@ client_setvolume_cbk (struct rpc_req *req, struct iovec *iov, int count, void *m
         char                 *process_uuid  = NULL;
         char                 *remote_error  = NULL;
         char                 *remote_subvol = NULL;
-        rpc_transport_t      *peer_trans    = NULL;
         gf_setvolume_rsp      rsp           = {0,};
-        uint64_t              peertrans_int = 0;
         int                   ret           = 0;
-        int                   op_ret        = 0;
-        int                   op_errno      = 0;
+        int32_t               op_ret        = 0;
+        int32_t               op_errno        = 0;
 
         frame = myframe;
         this  = frame->this;
@@ -398,14 +393,12 @@ client_setvolume_cbk (struct rpc_req *req, struct iovec *iov, int count, void *m
 
         if (-1 == req->rpc_status) {
                 op_ret = -1;
-                op_errno = EINVAL;
                 goto out;
         }
 
         ret = xdr_to_setvolume_rsp (*iov, &rsp);
         if (ret < 0) {
                 gf_log ("", GF_LOG_ERROR, "error");
-                op_errno = EINVAL;
                 op_ret = -1;
                 goto out;
         }
@@ -460,25 +453,30 @@ client_setvolume_cbk (struct rpc_req *req, struct iovec *iov, int count, void *m
         }
         ret = dict_get_str (this->options, "remote-subvolume",
                             &remote_subvol);
-        if (!remote_subvol)
+        if (ret || !remote_subvol)
                 goto out;
 
-        if (process_uuid &&
+        /* TODO: currently setpeer path is broken */
+        /*
+        if (process_uuid && req->conn &&
             !strcmp (this->ctx->process_uuid, process_uuid)) {
+                rpc_transport_t      *peer_trans    = NULL;
+                uint64_t              peertrans_int = 0;
+
                 ret = dict_get_uint64 (reply, "transport-ptr",
                                        &peertrans_int);
-
-                peer_trans = (void *) (long) (peertrans_int);
+                if (ret)
+                        goto out;
 
                 gf_log (this->name, GF_LOG_WARNING,
                         "attaching to the local volume '%s'",
                         remote_subvol);
 
-                if (req->conn) {
-                        /* TODO: Some issues with this logic at present */
-                        //rpc_transport_setpeer (req->conn->trans, peer_trans);
-                }
+                peer_trans = (void *) (long) (peertrans_int);
+
+                rpc_transport_setpeer (req->conn->trans, peer_trans);
         }
+        */
 
         gf_log (this->name, GF_LOG_NORMAL,
                 "Connected to %s, attached to remote volume '%s'.",
@@ -572,11 +570,18 @@ client_setvolume (xlator_t *this, struct rpc_clnt *rpc)
         }
 
         if (this->ctx->cmd_args.volfile_server) {
-                if (this->ctx->cmd_args.volfile_id)
+                if (this->ctx->cmd_args.volfile_id) {
                         ret = dict_set_str (options, "volfile-key",
                                             this->ctx->cmd_args.volfile_id);
+                        if (ret)
+                                gf_log (this->name, GF_LOG_ERROR,
+                                        "failed to set 'volfile-key'");
+                }
                 ret = dict_set_uint32 (options, "volfile-checksum",
                                        this->graph->volfile_checksum);
+                if (ret)
+                        gf_log (this->name, GF_LOG_ERROR,
+                                "failed to set 'volfile-checksum'");
         }
 
         req.dict.dict_len = dict_serialized_length (options);
diff --git a/xlators/protocol/client/src/client.c b/xlators/protocol/client/src/client.c
index 97d964434..383f52bc9 100644
--- a/xlators/protocol/client/src/client.c
+++ b/xlators/protocol/client/src/client.c
@@ -154,6 +154,9 @@ client_releasedir (xlator_t *this, fd_t *fd)
                 ret = proc->fn (frame, this, &args);
         }
 out:
+        if (ret)
+                gf_log (this->name, GF_LOG_TRACE,
+                        "releasedir fop failed");
 	return 0;
 }
 
@@ -180,6 +183,9 @@ client_release (xlator_t *this, fd_t *fd)
                 ret = proc->fn (frame, this, &args);
         }
 out:
+        if (ret)
+                gf_log (this->name, GF_LOG_TRACE,
+                        "release fop failed");
 	return 0;
 }
 
@@ -1394,10 +1400,15 @@ client_rpc_notify (struct rpc_clnt *rpc, void *mydata, rpc_clnt_event_t event,
 
                 if ((ret < 0) || (strcasecmp (handshake, "on"))) {
                         ret = client_handshake (this, conf->rpc);
-
+                        if (ret)
+                                gf_log (this->name, GF_LOG_DEBUG,
+                                        "handshake msg returned %d", ret);
                 } else {
                         //conf->rpc->connected = 1;
                         ret = default_notify (this, GF_EVENT_CHILD_UP, NULL);
+                        if (ret)
+                                gf_log (this->name, GF_LOG_DEBUG,
+                                        "default notify failed");
                 }
                 break;
         }
diff --git a/xlators/protocol/client/src/client3_1-fops.c b/xlators/protocol/client/src/client3_1-fops.c
index a007803b7..136f84bf5 100644
--- a/xlators/protocol/client/src/client3_1-fops.c
+++ b/xlators/protocol/client/src/client3_1-fops.c
@@ -1194,7 +1194,8 @@ client3_1_xattrop_cbk (struct rpc_req *req, struct iovec *iov, int count,
                 goto out;
         }
 
-        op_ret = rsp.op_ret;
+        op_errno = rsp.op_errno;
+        op_ret   = rsp.op_ret;
         if (-1 != op_ret) {
                 op_ret = -1;
                 dict_len = rsp.dict.dict_len;
@@ -1221,7 +1222,7 @@ client3_1_xattrop_cbk (struct rpc_req *req, struct iovec *iov, int count,
 out:
 
         STACK_UNWIND_STRICT (xattrop, frame, op_ret,
-                             gf_error_to_errno (rsp.op_errno), dict);
+                             gf_error_to_errno (op_errno), dict);
 
         if (rsp.dict.dict_val) {
                 /* don't use GF_FREE, this memory was allocated by libc
@@ -1267,8 +1268,8 @@ client3_1_fxattrop_cbk (struct rpc_req *req, struct iovec *iov, int count,
                 gf_log ("", GF_LOG_ERROR, "error");
                 goto out;
         }
-
-        op_ret = rsp.op_ret;
+        op_errno = rsp.op_errno;
+        op_ret   = rsp.op_ret;
         if (-1 != op_ret) {
                 op_ret = -1;
                 dict_len = rsp.dict.dict_len;
@@ -1295,7 +1296,7 @@ client3_1_fxattrop_cbk (struct rpc_req *req, struct iovec *iov, int count,
 out:
 
         STACK_UNWIND_STRICT (fxattrop, frame, op_ret,
-                             gf_error_to_errno (rsp.op_errno), dict);
+                             gf_error_to_errno (op_errno), dict);
 
         if (rsp.dict.dict_val) {
                 /* don't use GF_FREE, this memory was allocated by libc
@@ -1895,33 +1896,32 @@ client3_1_lookup_cbk (struct rpc_req *req, struct iovec *iov, int count,
                 gf_stat_to_iatt (&rsp.stat, &stbuf);
 
                 ret = inode_ctx_get2 (inode, frame->this, &oldino, &oldgen);
-                if (oldino != stbuf.ia_ino || oldgen != stbuf.ia_gen) {
-                        if (oldino) {
-                                gf_log (frame->this->name, GF_LOG_DEBUG,
-                                        "LOOKUP %"PRId64"/%s (%s): "
-                                        "inode number changed from "
-                                        "{%"PRId64",%"PRId64"} to {%"PRId64",%"PRId64"}",
-                                        local->loc.parent ?
-                                        local->loc.parent->ino : (uint64_t) 0,
-                                        local->loc.name,
-                                        local->loc.path,
-                                        oldgen, oldino, stbuf.ia_gen, stbuf.ia_ino);
-                                op_errno = ESTALE;
-                                goto out;
-                        }
+                if ((!ret) && ((oldino != stbuf.ia_ino) ||
+                               (oldgen != stbuf.ia_gen))) {
+                        gf_log (frame->this->name, GF_LOG_DEBUG,
+                                "LOOKUP %"PRId64"/%s (%s): "
+                                "inode number changed from "
+                                "{%"PRId64",%"PRId64"} to {%"PRId64",%"PRId64"}",
+                                local->loc.parent ?
+                                local->loc.parent->ino : (uint64_t) 0,
+                                local->loc.name,
+                                local->loc.path,
+                                oldgen, oldino, stbuf.ia_gen, stbuf.ia_ino);
+                        op_errno = ESTALE;
+                        goto out;
+                }
 
-                        ret = inode_ctx_put2 (inode, frame->this,
-                                              stbuf.ia_ino, stbuf.ia_gen);
-                        if (ret < 0) {
-                                gf_log (frame->this->name, GF_LOG_DEBUG,
-                                        "LOOKUP %"PRId64"/%s (%s) : "
-                                        "failed to set remote inode "
-                                        "number to inode ctx",
-                                        local->loc.parent ?
-                                        local->loc.parent->ino : (uint64_t) 0,
-                                        local->loc.name,
-                                        local->loc.path);
-                        }
+                ret = inode_ctx_put2 (inode, frame->this,
+                                      stbuf.ia_ino, stbuf.ia_gen);
+                if (ret < 0) {
+                        gf_log (frame->this->name, GF_LOG_DEBUG,
+                                "LOOKUP %"PRId64"/%s (%s) : "
+                                "failed to set remote inode "
+                                "number to inode ctx",
+                                local->loc.parent ?
+                                local->loc.parent->ino : (uint64_t) 0,
+                                local->loc.name,
+                                local->loc.path);
                 }
 
                 if (rsp.dict.dict_len > 0) {