From 47c344d0bd290e04c57eefdb0a721726e53bb57e Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Wed, 10 Nov 2010 01:33:12 -0500 Subject: [PATCH] vcs: make proper usage of the poll flags Kay Sievers pointed out that usage of POLLIN is well defined by POSIX, and the current usage here doesn't follow that definition. So let's duplicate the same semantics as implemented by sysfs_poll() instead. Signed-off-by: Nicolas Pitre Acked-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/tty/vt/vc_screen.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c index 273ab44..eab3a1f 100644 --- a/drivers/tty/vt/vc_screen.c +++ b/drivers/tty/vt/vc_screen.c @@ -553,12 +553,12 @@ static unsigned int vcs_poll(struct file *file, poll_table *wait) { struct vcs_poll_data *poll = vcs_poll_data_get(file); - int ret = 0; + int ret = DEFAULT_POLLMASK|POLLERR|POLLPRI; if (poll) { poll_wait(file, &poll->waitq, wait); - if (!poll->seen_last_update) - ret = POLLIN | POLLRDNORM; + if (poll->seen_last_update) + ret = DEFAULT_POLLMASK; } return ret; } -- 2.7.4