libglusterfs multiple files: remove dead initilization

Per newer GCC releases and clang-scan, some trivial
dead initialization (values that were set but were never
read) were removed.

Compile-tested only!

updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>

Change-Id: Ia9959b2ff87d2e9cb46864e68ffe7dccb984db34

10 files changed, 13 insertions, 55 deletions

diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index bd2cf35a52a..5d66e8d4207 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -750,7 +750,6 @@ xldump_subvolumes(xlator_t *this, void *d)
     int len = 0;
     char *subvstr = NULL;
 
-    subv = this->children;
     if (!this->children)
         return;
 
@@ -2116,7 +2115,6 @@ gf_is_ip_in_net(const char *network, const char *ip_str)
     else if (strchr(network, '.'))
         family = AF_INET;
     else {
-        family = -1;
         goto out;
     }
 
@@ -2433,7 +2431,6 @@ valid_ipv4_address(char *address, int length, gf_boolean_t wildcard_acc)
         goto out;
     }
 
-    prev = tmp;
     prev = strtok_r(tmp, ".", &ptr);
 
     while (prev != NULL) {
@@ -4323,7 +4320,6 @@ gf_backtrace_fillframes(char *buf)
     fp = fdopen(fd, "r");
     if (!fp) {
         sys_close(fd);
-        ret = -1;
         goto out;
     }
 
diff --git a/libglusterfs/src/ctx.c b/libglusterfs/src/ctx.c
index 1e4c341df05..170a5752452 100644
--- a/libglusterfs/src/ctx.c
+++ b/libglusterfs/src/ctx.c
@@ -17,14 +17,12 @@
 glusterfs_ctx_t *
 glusterfs_ctx_new()
 {
-    int ret = 0;
     glusterfs_ctx_t *ctx = NULL;
 
     /* no GF_CALLOC here, gf_acct_mem_set_enable is not
        yet decided at this point */
     ctx = calloc(1, sizeof(*ctx));
     if (!ctx) {
-        ret = -1;
         goto out;
     }
 
@@ -44,8 +42,7 @@ glusterfs_ctx_new()
 #endif
 
     /* lock is never destroyed! */
-    ret = LOCK_INIT(&ctx->lock);
-    if (ret) {
+    if (LOCK_INIT(&ctx->lock)) {
         free(ctx);
         ctx = NULL;
         goto out;
diff --git a/libglusterfs/src/fd.c b/libglusterfs/src/fd.c
index 6c521317110..25edcbdd387 100644
--- a/libglusterfs/src/fd.c
+++ b/libglusterfs/src/fd.c
@@ -1131,6 +1131,8 @@ fdentry_dump_to_dict(fdentry_t *fdentry, char *prefix, dict_t *dict,
 
         snprintf(key, sizeof(key), "%s.flags", prefix);
         ret = dict_set_int32(dict, key, fdentry->fd->flags);
+        if (ret)
+            return;
 
         (*openfds)++;
     }
@@ -1180,6 +1182,8 @@ fdtable_dump_to_dict(fdtable_t *fdtable, char *prefix, dict_t *dict)
 
     snprintf(key, sizeof(key), "%s.fdtable.openfds", prefix);
     ret = dict_set_int32(dict, key, openfds);
+    if (ret)
+        goto out;
 
 out:
     pthread_rwlock_unlock(&fdtable->lock);
diff --git a/libglusterfs/src/gfdb/gfdb_data_store.c b/libglusterfs/src/gfdb/gfdb_data_store.c
index 426596c571e..ab56a51d462 100644
--- a/libglusterfs/src/gfdb/gfdb_data_store.c
+++ b/libglusterfs/src/gfdb/gfdb_data_store.c
@@ -267,7 +267,6 @@ init_db(dict_t *args, gfdb_db_type_t gfdb_db_type)
         goto init_db_failed;
     }
     _conn_node->gfdb_connection.gfdb_db_type = gfdb_db_type;
-    ret = 0;
 
     return _conn_node;
 
diff --git a/libglusterfs/src/gfdb/gfdb_data_store_helper.c b/libglusterfs/src/gfdb/gfdb_data_store_helper.c
index fb01a6c699b..b1f79bc8dad 100644
--- a/libglusterfs/src/gfdb/gfdb_data_store_helper.c
+++ b/libglusterfs/src/gfdb/gfdb_data_store_helper.c
@@ -313,7 +313,6 @@ gfdb_query_record_serialize(gfdb_query_record_t *query_record, char **in_buffer)
 
     /* Copying the Footer of the record */
     memcpy(buffer, &footer, sizeof(int32_t));
-    buffer += sizeof(int32_t);
     count += sizeof(int32_t);
 
 out:
diff --git a/libglusterfs/src/inode.c b/libglusterfs/src/inode.c
index 8bfd5c70db8..b8e389ac140 100644
--- a/libglusterfs/src/inode.c
+++ b/libglusterfs/src/inode.c
@@ -2392,6 +2392,8 @@ inode_dump_to_dict(inode_t *inode, char *prefix, dict_t *dict)
 
     snprintf(key, sizeof(key), "%s.ia_type", prefix);
     ret = dict_set_int32(dict, key, inode->ia_type);
+    if (ret)
+        goto out;
 
 out:
     UNLOCK(&inode->lock);
diff --git a/libglusterfs/src/stack.c b/libglusterfs/src/stack.c
index 4b5d13c3fc8..c06e2dc378d 100644
--- a/libglusterfs/src/stack.c
+++ b/libglusterfs/src/stack.c
@@ -327,6 +327,8 @@ gf_proc_dump_call_frame_to_dict(call_frame_t *call_frame, char *prefix,
     if (tmp_frame.unwind_to) {
         snprintf(key, sizeof(key), "%s.unwind_to", prefix);
         ret = dict_set_dynstr(dict, key, gf_strdup(tmp_frame.unwind_to));
+        if (ret)
+            return;
     }
 
     return;
diff --git a/libglusterfs/src/statedump.c b/libglusterfs/src/statedump.c
index 0f4a7102697..ed5cad5349b 100644
--- a/libglusterfs/src/statedump.c
+++ b/libglusterfs/src/statedump.c
@@ -745,7 +745,7 @@ gf_proc_dump_options_init()
     (void)gf_proc_dump_disable_all_options();
 
     // swallow the errors if setting statedump file path is failed.
-    ret = gf_proc_dump_set_path(dump_option_file);
+    (void)gf_proc_dump_set_path(dump_option_file);
 
     ret = fscanf(fp, "%s", buf);
 
@@ -864,7 +864,7 @@ gf_proc_dump_info(int signum, glusterfs_ctx_t *ctx)
                    timestr);
 
     // swallow the errors of write for start and end marker
-    ret = sys_write(gf_dump_fd, sign_string, len);
+    (void)sys_write(gf_dump_fd, sign_string, len);
 
     memset(timestr, 0, sizeof(timestr));
 
@@ -914,7 +914,7 @@ gf_proc_dump_info(int signum, glusterfs_ctx_t *ctx)
 
     len = snprintf(sign_string, sizeof(sign_string), "\nDUMP-END-TIME: %s",
                    timestr);
-    ret = sys_write(gf_dump_fd, sign_string, len);
+    (void)sys_write(gf_dump_fd, sign_string, len);
 
     if (gf_dump_fd != -1)
         gf_proc_dump_close();
diff --git a/libglusterfs/src/syncop.c b/libglusterfs/src/syncop.c
index 18ce6cf73af..edf978d797d 100644
--- a/libglusterfs/src/syncop.c
+++ b/libglusterfs/src/syncop.c
@@ -3397,42 +3397,4 @@ syncop_namelink_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
     __wake(args);
 
     return 0;
-}
-
-int
-syncop_icreate(xlator_t *subvol, loc_t *loc, mode_t mode, dict_t *xdata)
-{
-    struct syncargs args = {
-        0,
-    };
-
-    SYNCOP(subvol, (&args), syncop_icreate_cbk, subvol->fops->icreate, loc,
-           mode, xdata);
-
-    if (xdata)
-        xdata = args.xdata;
-    else if (args.xdata)
-        dict_unref(args.xdata);
-
-    errno = args.op_errno;
-    return args.op_ret;
-}
-
-int
-syncop_namelink(xlator_t *subvol, loc_t *loc, dict_t *xdata)
-{
-    struct syncargs args = {
-        0,
-    };
-
-    SYNCOP(subvol, (&args), syncop_namelink_cbk, subvol->fops->namelink, loc,
-           xdata);
-
-    if (xdata)
-        xdata = args.xdata;
-    else if (args.xdata)
-        dict_unref(args.xdata);
-
-    errno = args.op_errno;
-    return args.op_ret;
-}
+}
\ No newline at end of file
diff --git a/libglusterfs/src/syncop.h b/libglusterfs/src/syncop.h
index cea52429f6f..88279d15490 100644
--- a/libglusterfs/src/syncop.h
+++ b/libglusterfs/src/syncop.h
@@ -630,9 +630,6 @@ int
 syncop_icreate(xlator_t *subvol, loc_t *loc, mode_t mode, dict_t *xdata_out);
 
 int
-syncop_namelink(xlator_t *subvol, loc_t *loc, dict_t *xdata_out);
-
-int
 syncop_entrylk(xlator_t *subvol, const char *volume, loc_t *loc,
                const char *basename, entrylk_cmd cmd, entrylk_type type,
                dict_t *xdata_in, dict_t **xdata_out);