Merge pull request #287 from wcohen/wcohen/coverity202411

Wcohen/coverity202411

src/components/infiniband/linux-infiniband.c

@@ -335,6 +335,9 @@ add_ib_counter(const char* name, const char* file_name, int extended, ib_device_
     if (new_cnt->ev_name==0 || new_cnt->ev_file_name==0)
     {
         PAPIERROR("cannot allocate memory for counter internal fields");
+        /* free(NULL) is allowed and means no operation is performed */
+        papi_free(new_cnt->ev_name);
+        papi_free(new_cnt->ev_file_name);
         papi_free(new_cnt);
         return (0);
     }

src/components/lmsensors/linux-lmsensors.c

@@ -375,7 +375,7 @@ link_lmsensors_libraries ()
       return PAPI_ENOSUPP;
    }
 
-   char path_name[1024];
+   char path_name[PATH_MAX];
    char *lmsensors_root = getenv("PAPI_LMSENSORS_ROOT"); 
 
    dl1 = NULL;

src/components/sysdetect/linux_cpu_utils.c

@@ -558,7 +558,7 @@ get_cache_type( const char *dirname, int *value )
     char filename[BUFSIZ];
     char type_string[BUFSIZ];
     char buffer[BUFSIZ];
-    int type;
+    int type = PAPI_MH_TYPE_EMPTY;
 
     sprintf(filename, "/sys/devices/system/cpu/cpu0/cache/%s/type",
             dirname);

src/threads.c

@@ -130,6 +130,7 @@ allocate_thread( int tid )
 		if ( thread->context[i] == NULL ) {
 			for ( i--; i >= 0; i-- )
 				papi_free( thread->context[i] );
+			papi_free( thread->running_eventset );
 			papi_free( thread->context );
 			papi_free( thread );
 			return ( NULL );