Fix minor memory leak with input preprocessor. (#150)

If the read doesn't succeed, readfd still returns a malloc'ed buffer.
gwsw · Apr 16, 2021 · da495f5 · da495f5
1 parent 5bc78d5
commit da495f5
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/filename.c b/filename.c
@@ -946,10 +946,13 @@ open_altfile(filename, pf, pfd)
  cmd = readfd(fd);
  pclose(fd);
  if (*cmd == '\0')
+ {
  /*
  * Pipe is empty. This means there is no alt file.
  */
+ free(cmd);
  return (NULL);
+ }
  return (cmd);
 #endif /* HAVE_POPEN */
 }