axfer: return the number of file descriptors for I/O events from select(2) waiter

A call of select(2) returns error code at failure, the number of file
descriptors available I/O at success. Current implementation of
waiter abstraction for select(2) returns 0 at success and callers
can't get the number.

This commit fixes it.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/axfer/waiter-select.c b/axfer/waiter-select.c
index a2776e5e0659d4cb5c1ffca9d2c07a088a4090fb..9dc549bf9d11872c9a5ab64d055e51eb481e2df3 100644 (file)
--- a/axfer/waiter-select.c
+++ b/axfer/waiter-select.c
@@ -91,7 +91,7 @@ static int select_wait_event(struct waiter_context *waiter, int timeout_msec)
                        pfd->revents |= POLLHUP;
        }
 
-       return 0;
+       return err;
 }
 
 static void select_release(struct waiter_context *waiter)