4.19-stable review patch. If anyone has any objections, please let me know.
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From: Carlos Llamas cmllamas@google.com
commit 6ac061db9c58ca5b9270b1b3940d2464fb3ff183 upstream.
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: f88982679f54 ("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 --- drivers/android/binder.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -4462,7 +4462,7 @@ static __poll_t binder_poll(struct file
thread = binder_get_thread(proc); if (!thread) - return POLLERR; + return EPOLLERR;
binder_inner_proc_lock(thread->proc); thread->looper |= BINDER_LOOPER_STATE_POLL;