clang-20 found possibly uninitialized variables

Author: roblatham00

darshan-util/darshan-hdf5-logutils.c

@@ -219,7 +219,7 @@ static int darshan_log_get_hdf5_dataset(darshan_fd fd, void** hdf5_buf_p)
     struct darshan_hdf5_dataset *ds = *((struct darshan_hdf5_dataset **)hdf5_buf_p);
     int rec_len;
     int i;
-    int ret;
+    int ret=0;
 
     if(fd->mod_map[DARSHAN_H5D_MOD].len == 0)
         return(0);

darshan-util/darshan-pnetcdf-logutils.c

@@ -253,7 +253,7 @@ static int darshan_log_get_pnetcdf_var(darshan_fd fd, void** pnetcdf_buf_p)
     struct darshan_pnetcdf_var *var = *((struct darshan_pnetcdf_var **)pnetcdf_buf_p);
     int rec_len;
     int i;
-    int ret;
+    int ret=0;
 
     if(fd->mod_map[DARSHAN_PNETCDF_VAR_MOD].len == 0)
         return(0);

darshan-util/darshan-stdio-logutils.c

@@ -142,7 +142,7 @@ static int darshan_log_get_stdio_record(darshan_fd fd, void** stdio_buf_p)
     struct darshan_stdio_file *file = *((struct darshan_stdio_file **)stdio_buf_p);
     int rec_len;
     int i;
-    int ret;
+    int ret=0;
 
     if(fd->mod_map[DARSHAN_STDIO_MOD].len == 0)
         return(0);