autofs4: fix false positive compile error

On strict build environments we can see:

  fs/autofs4/inode.c: In function 'autofs4_fill_super':
  fs/autofs4/inode.c:312: error: 'pgrp' may be used uninitialized in this function
  make[2]: *** [fs/autofs4/inode.o] Error 1
  make[1]: *** [fs/autofs4] Error 2
  make: *** [fs] Error 2
  make: *** Waiting for unfinished jobs....

This is due to the use of pgrp_set being used to indicate pgrp has has
been set rather than initializing pgrp itself.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index d7bd395ab5865d070b547ac31c03a85b58ae6c46..1c55388ae633c9908ab31934de070cbee08ae06f 100644 (file)
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -210,7 +210,7 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
        int pipefd;
        struct autofs_sb_info *sbi;
        struct autofs_info *ino;
-       int pgrp;
+       int pgrp = 0;
        bool pgrp_set = false;
        int ret = -EINVAL;