Merge branch 'keys-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells...

Merge branch 'keys-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull watch_queue fixes from David Howells:
 "Here are fixes for a couple more watch_queue bugs, both found by syzbot:

   - Fix error cleanup in watch_queue_set_size() where it tries to clean
     up all the pointers in the page list, even if they've not been
     allocated yet[1]. Unfortunately, __free_page() doesn't treat a NULL
     pointer as being "do nothing".

     A second report[2] looks like it's probably the same bug, but on
     arm64 rather than x86_64, but there's no reproducer.

   - Fix a missing kfree in free_watch() to actually free the watch[3]"

Link: https://lore.kernel.org/r/000000000000b1807c05daad8f98@google.com/
Link: https://lore.kernel.org/r/000000000000035b9c05daae8a5e@google.com/
Link: https://lore.kernel.org/r/000000000000bc8eaf05dab91c63@google.com/
* 'keys-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  watch_queue: Actually free the watch
  watch_queue: Fix NULL dereference in error cleanup