From: Marcel Holtmann <marcel@holtmann.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] Input: uinput - Fix returning EPOLLOUT from uinput_poll
Date: Wed, 4 Dec 2019 03:50:14 +0100 [thread overview]
Message-ID: <20191204025014.5189-1-marcel@holtmann.org> (raw)
Always return EPOLLOUT from uinput_poll to allow polling /dev/uinput
for writable state.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
---
drivers/input/misc/uinput.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 84051f20b18a..fd253781be71 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -695,7 +695,7 @@ static __poll_t uinput_poll(struct file *file, poll_table *wait)
if (udev->head != udev->tail)
return EPOLLIN | EPOLLRDNORM;
- return 0;
+ return EPOLLOUT | EPOLLWRNORM;
}
static int uinput_release(struct inode *inode, struct file *file)
--
2.23.0
next reply other threads:[~2019-12-04 2:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-04 2:50 Marcel Holtmann [this message]
2019-12-05 1:27 ` [PATCH] Input: uinput - Fix returning EPOLLOUT from uinput_poll Dmitry Torokhov
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