From: Takashi Sakamoto Date: Tue, 29 Oct 2019 15:07:59 +0000 (+0900) Subject: axfer: return the number of file descriptors for I/O events from select(2) waiter X-Git-Tag: v1.2.1~11 X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=178a1f187caeef0c0a883c132ab9de5124b6cdc4;p=alsa-utils.git 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 Signed-off-by: Jaroslav Kysela --- diff --git a/axfer/waiter-select.c b/axfer/waiter-select.c index a2776e5..9dc549b 100644 --- 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)