pstree: do not crash on missing /proc/xxxx directory

This can happen when process ends while pstree is running.
Ignore such processes.

diff --git a/src/pstree.c b/src/pstree.c
index 99881e9cc9c5224bb1b18648c2688d2bb0ae9599..3de0792c63eb3b7176058fb431afc1447ffd48b7 100644 (file)
--- a/src/pstree.c
+++ b/src/pstree.c
@@ -1035,8 +1035,9 @@ static void read_proc(void)
           }
 #endif                /*WITH_SELINUX */
         if (stat(path, &st) < 0) {
-          perror(path);
-          exit(1);
+          (void) fclose(file);
+          free(path);
+          continue;
         }
         size = fread(readbuf, 1, BUFSIZ, file);
         if (ferror(file) == 0) {