fix memleaks and uninitialized vars found by cppcheck

lib/examples/pdsch_ue.c

@@ -606,13 +606,13 @@ int main(int argc, char **argv) {
     dl_sf.tdd_config.configured = true;
   }
 
-  srslte_chest_dl_cfg_t chest_pdsch_cfg;
+  srslte_chest_dl_cfg_t chest_pdsch_cfg = {};
   chest_pdsch_cfg.cfo_estimate_enable  = prog_args.enable_cfo_ref;
   chest_pdsch_cfg.cfo_estimate_sf_mask = 1023;
   chest_pdsch_cfg.interpolate_subframe = !prog_args.average_subframe;
 
   // Special configuration for MBSFN channel estimation
-  srslte_chest_dl_cfg_t chest_mbsfn_cfg;
+  srslte_chest_dl_cfg_t chest_mbsfn_cfg = {};
   chest_mbsfn_cfg.filter_type          = SRSLTE_CHEST_FILTER_TRIANGLE;
   chest_mbsfn_cfg.filter_coef[0]       = 0.1;
   chest_mbsfn_cfg.interpolate_subframe = true;

lib/src/phy/io/filesource.c

@@ -52,7 +52,7 @@ void srslte_filesource_seek(srslte_filesource_t *q, int pos) {
 
 int read_complex_f(FILE *f, _Complex float *y) {
   char in_str[64];
-  _Complex float x;
+  _Complex float x = 0;
   if (NULL == fgets(in_str, 64, f)) {
     return -1;
   } else {

lib/src/phy/sync/test/nsss_test.c

@@ -86,8 +86,8 @@ void parse_args(int argc, char** argv)
 
 int main(int argc, char** argv)
 {
-  cf_t*               fft_buffer;
-  cf_t*               buffer;
+  cf_t*               fft_buffer = NULL;
+  cf_t*               buffer     = NULL;
   srslte_nsss_synch_t syncobj;
   srslte_ofdm_t       ifft;
   int                 fft_size;
@@ -107,20 +107,20 @@ int main(int argc, char** argv)
   fft_size = srslte_symbol_sz(NOF_PRB);
   if (fft_size < 0) {
     fprintf(stderr, "Invalid nof_prb=%d\n", NOF_PRB);
-    return ret;
+    goto exit;
   }
 
   printf("SFLEN is %d samples\n", SFLEN);
   fft_buffer = malloc(sizeof(cf_t) * SFLEN * max_num_sf);
   if (!fft_buffer) {
     perror("malloc");
-    return ret;
+    goto exit;
   }
   memset(fft_buffer, 0, sizeof(cf_t) * SFLEN * max_num_sf);
 
   if (srslte_ofdm_tx_init(&ifft, SRSLTE_CP_NORM, buffer, fft_buffer, NOF_PRB)) {
     fprintf(stderr, "Error creating iFFT object\n");
-    return ret;
+    goto exit;
   }
 
   if (input_file_name != NULL) {
@@ -128,7 +128,7 @@ int main(int argc, char** argv)
     printf("Opening file %s\n", input_file_name);
     if (srslte_filesource_init(&fsrc, input_file_name, SRSLTE_COMPLEX_FLOAT_BIN)) {
       fprintf(stderr, "Error opening file %s\n", input_file_name);
-      return ret;
+      goto exit;
     }
     num_sf = 0;
 
@@ -141,7 +141,7 @@ int main(int argc, char** argv)
       int n = srslte_filesource_read(&fsrc, &fft_buffer[num_sf * SFLEN], SFLEN);
       if (n < 0) {
         fprintf(stderr, "Error reading samples\n");
-        return ret;
+        goto exit;
       }
       if (n < SFLEN) {
         fprintf(stdout, "End of file (n=%d, sflen=%d)\n", n, SFLEN);
@@ -157,7 +157,7 @@ int main(int argc, char** argv)
   printf("Initializing NSSS synch with %dx%d samples.\n", num_sf, SFLEN);
   if (srslte_nsss_synch_init(&syncobj, num_sf * SFLEN, fft_size)) {
     fprintf(stderr, "Error initializing NSSS object\n");
-    return ret;
+    goto exit;
   }
 
   // write single NSSS sequence if not reading from input file
@@ -214,10 +214,16 @@ int main(int argc, char** argv)
 #endif
 
   // cleanup
+exit:
   srslte_nsss_synch_free(&syncobj);
-  free(buffer);
-  free(fft_buffer);
   srslte_ofdm_tx_free(&ifft);
+  if (buffer) {
+    free(buffer);
+  }
+  if (fft_buffer) {
+    free(fft_buffer);
+  }
+
   return ret;
 }
 

lib/src/phy/sync/test/sync_nbiot_test.c

@@ -83,8 +83,9 @@ void parse_args(int argc, char** argv)
 
 int main(int argc, char** argv)
 {
+  int            ret        = SRSLTE_ERROR;
   int            sf_idx = 0;
-  cf_t*          fft_buffer;
+  cf_t*          fft_buffer = NULL;
   _Complex float buffer[SFLEN]; // FLEN + fft_size
 
   srslte_filesource_t fsrc;
@@ -102,7 +103,7 @@ int main(int argc, char** argv)
     printf("Opening file...\n");
     if (srslte_filesource_init(&fsrc, input_file_name, SRSLTE_COMPLEX_FLOAT_BIN)) {
       fprintf(stderr, "Error opening file %s\n", input_file_name);
-      exit(-1);
+      goto exit;
     }
   }
 
@@ -116,14 +117,14 @@ int main(int argc, char** argv)
   fft_buffer = malloc(sizeof(cf_t) * SFLEN * 2);
   if (!fft_buffer) {
     perror("malloc");
-    exit(-1);
+    goto exit;
   }
 
   memset(buffer, 0, sizeof(cf_t) * SFLEN);
 
   if (srslte_cfo_init(&cfocorr, SFLEN)) {
     fprintf(stderr, "Error initiating CFO\n");
-    return -1;
+    goto exit;
   }
   // Set a CFO tolerance of approx 100 Hz
   srslte_cfo_set_tol(&cfocorr, 100.0 / (15000.0 * fft_size));
@@ -131,7 +132,7 @@ int main(int argc, char** argv)
   // init synch object for a maximum SFLEN samples
   if (srslte_sync_nbiot_init(&syncobj, SFLEN, SFLEN, fft_size)) {
     fprintf(stderr, "Error initiating NPSS/NSSS\n");
-    return -1;
+    goto exit;
   }
   srslte_sync_nbiot_set_cfo_enable(&syncobj, true);
 
@@ -140,7 +141,7 @@ int main(int argc, char** argv)
     if (srslte_ofdm_tx_init(
             &ifft, SRSLTE_CP_NORM, buffer, &fft_buffer[offset], SRSLTE_NBIOT_DEFAULT_NUM_PRB_BASECELL)) {
       fprintf(stderr, "Error creating iFFT object\n");
-      exit(-1);
+      goto exit;
     }
     srslte_ofdm_set_normalize(&ifft, true);
     srslte_ofdm_set_freq_shift(&ifft, -SRSLTE_NBIOT_FREQ_SHIFT_FACTOR);
@@ -162,7 +163,7 @@ int main(int argc, char** argv)
     int n = srslte_filesource_read(&fsrc, fft_buffer, SFLEN);
     if (n < 0) {
       fprintf(stderr, "Error reading samples\n");
-      exit(-1);
+      goto exit;
     }
   }
 
@@ -204,15 +205,23 @@ int main(int argc, char** argv)
                        (SFLEN + SRSLTE_NPSS_CORR_FILTER_LEN - 1) * sizeof(float));
 #endif
 
+  printf("Ok\n");
+
+  ret = SRSLTE_SUCCESS;
+
   // cleanup
-  if (input_file_name != NULL)
+exit:
+  if (input_file_name != NULL) {
     srslte_filesource_free(&fsrc);
+  }
   srslte_sync_nbiot_free(&syncobj);
-  free(fft_buffer);
   srslte_cfo_free(&cfocorr);
 
-  printf("Ok\n");
-  exit(0);
+  if (fft_buffer) {
+    free(fft_buffer);
+  }
+
+  return ret;
 }
 
 void write_to_file()

srsenb/src/stack/mac/scheduler.cc

@@ -214,7 +214,7 @@ alloc_outcome_t sched::tti_sched_t::alloc_ul(sched_ue*                       use
     return ret;
   }
 
-  ul_alloc_t ul_alloc;
+  ul_alloc_t ul_alloc = {};
   ul_alloc.type     = alloc_type;
   ul_alloc.dci_idx  = tti_alloc.get_pdcch_grid().nof_allocs() - 1;
   ul_alloc.user_ptr = user;

srsepc/src/main.cc

@@ -89,8 +89,8 @@ void parse_args(all_args_t* args, int argc, char* argv[])
   string   mme_apn;
   string   encryption_algo;
   string   integrity_algo;
-  uint16_t paging_timer;
-  uint32_t max_paging_queue;
+  uint16_t paging_timer     = 0;
+  uint32_t max_paging_queue = 0;
   string   spgw_bind_addr;
   string   sgi_if_addr;
   string   sgi_if_name;