avoid warnings (as errors) spots (init vars, etc.)

src/mca/ess/base/ess_base_std_prted.c

@@ -100,14 +100,14 @@ int prte_ess_base_prted_setup(void)
     char log_file[PATH_MAX];
     char *error = NULL;
     char *uri = NULL;
-    char *tmp;
-    prte_job_t *jdata;
+    char *tmp = NULL;
+    prte_job_t *jdata = NULL;
     prte_proc_t *proc;
-    prte_app_context_t *app;
+    prte_app_context_t *app = NULL;
     hwloc_obj_t obj;
     unsigned i, j;
-    prte_topology_t *t;
-    prte_ess_base_signal_t *sig;
+    prte_topology_t *t = NULL;
+    prte_ess_base_signal_t *sig = NULL;
     int idx;
     pmix_value_t val;
 

src/mca/odls/base/odls_base_default_fns.c

@@ -939,7 +939,8 @@ void prte_odls_base_spawn_proc(int fd, short sd, void *cbdata)
     prte_job_t *jobdat = cd->jdata;
     prte_app_context_t *app = cd->app;
     prte_proc_t *child = cd->child;
-    int rc, i;
+    int rc = PRTE_SUCCESS;
+    int i;
     bool found;
     prte_proc_state_t state;
     pmix_proc_t pproc;

src/mca/plm/base/plm_base_frame.c

@@ -215,10 +215,10 @@ static int term_orteds(void)
 static void launch_daemons(int fd, short args, void *cbdata)
 {
     prte_state_caddy_t *state = (prte_state_caddy_t *) cbdata;
-    prte_job_t *daemons;
+    prte_job_t *daemons = NULL;
     int rc;
     prte_job_map_t *map = NULL;
-    prte_node_t *node;
+    prte_node_t *node = NULL;
     PRTE_HIDE_UNUSED_PARAMS(fd, args);
 
     /* setup the virtual machine */

src/mca/rmaps/base/rmaps_base_binding.c

@@ -56,7 +56,7 @@ static int bind_generic(prte_job_t *jdata, prte_proc_t *proc,
                         prte_node_t *node, hwloc_obj_t obj,
                         prte_rmaps_options_t *options)
 {
-    hwloc_obj_t trg_obj, tmp_obj;
+    hwloc_obj_t trg_obj = NULL, tmp_obj = NULL;
     unsigned ncpus;
     hwloc_obj_type_t type;
     hwloc_obj_t target;

src/mca/schizo/prte/schizo_prte.c

@@ -454,10 +454,10 @@ static int convert_deprecated_cli(pmix_cli_result_t *results,
 static int parse_cli(char **argv, pmix_cli_result_t *results,
                      bool silent)
 {
-    char *shorts, *helpfile;
-    struct option *myoptions;
+    char *shorts = NULL, *helpfile = NULL;
+    struct option *myoptions = NULL;
     int rc, n;
-    pmix_cli_item_t *opt;
+    pmix_cli_item_t *opt = NULL;
 
     if (0 == strcmp(prte_tool_actual, "prte")) {
         myoptions = prteoptions;

src/prted/pmix/pmix_server.c

@@ -1808,15 +1808,15 @@ static void pmix_server_sched(int status, pmix_proc_t *sender,
                               pmix_data_buffer_t *buffer,
                               prte_rml_tag_t tg, void *cbdata)
 {
-    pmix_status_t rc;
+    pmix_status_t rc = PMIX_SUCCESS;
     uint8_t cmd;
     int32_t cnt;
     size_t ninfo;
     pmix_alloc_directive_t allocdir;
     uint32_t sessionID;
     pmix_info_t *info = NULL;
     pmix_proc_t source;
-    pmix_server_req_t *req;
+    pmix_server_req_t *req = NULL;
     int refid;
     PRTE_HIDE_UNUSED_PARAMS(status, tg, cbdata);
 

src/prted/pmix/pmix_server_allocate.c

@@ -248,9 +248,9 @@ static void pass_request(int sd, short args, void *cbdata)
 {
     pmix_server_req_t *req = (pmix_server_req_t*)cbdata;
     pmix_status_t rc;
-    size_t n;
-    pmix_info_t *xfer;
-    PRTE_HIDE_UNUSED_PARAMS(sd, args);
+    size_t n = 0;
+    pmix_info_t *xfer = NULL;
+    PRTE_HIDE_UNUSED_PARAMS(sd, args, n, xfer);
 
     /* add this request to our local request tracker array */
     req->local_index = pmix_pointer_array_add(&prte_pmix_server_globals.local_reqs, req);

src/tools/prte_info/param.c

@@ -325,12 +325,12 @@ void prte_info_show_path(const char *type, const char *value)
     free(path);
 }
 
-void prte_info_do_arch()
+void prte_info_do_arch(void)
 {
     prte_info_out("Configured architecture", "config:arch", PRTE_ARCH);
 }
 
-void prte_info_do_hostname()
+void prte_info_do_hostname(void)
 {
     prte_info_out("Configure host", "config:host", PRTE_CONFIGURE_HOST);
 }