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binder: use EPOLLERR from eventpoll.h

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Use EPOLLERR instead of POLLERR to make sure it is cast to the correct
__poll_t type. This fixes the following sparse issue:

  drivers/android/binder.c:5030:24: warning: incorrect type in return expression (different base types)
  drivers/android/binder.c:5030:24:    expected restricted __poll_t
  drivers/android/binder.c:5030:24:    got int

Fixes: f88982679f ("binder: check for binder_thread allocation failure in binder_poll()")
Cc: stable@vger.kernel.org
Cc: Eric Biggers <ebiggers@google.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20231201172212.1813387-2-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Carlos Llamas 2023-12-01 17:21:30 +00:00 committed by Greg Kroah-Hartman
parent ad6bcdad2b
commit 6ac061db9c
1 changed files with 1 additions and 1 deletions
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2
drivers/android/binder.c
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@ -5030,7 +5030,7 @@ static __poll_t binder_poll(struct file *filp,
thread = binder_get_thread(proc);
if (!thread)
return POLLERR;
return EPOLLERR;
binder_inner_proc_lock(thread->proc);
thread->looper |= BINDER_LOOPER_STATE_POLL;