Messages in this thread Patch in this message | | | From | Ben Hutchings <> | Date | Fri, 24 Apr 2020 00:05:01 +0100 | Subject | [PATCH 3.16 074/245] HID: uhid: Fix returning EPOLLOUT from uhid_char_poll |
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3.16.83-rc1 review patch. If anyone has any objections, please let me know.
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From: Marcel Holtmann <marcel@holtmann.org>
commit be54e7461ffdc5809b67d2aeefc1ddc9a91470c7 upstream.
Always return EPOLLOUT from uhid_char_poll to allow polling /dev/uhid for writable state.
Fixes: 1f9dec1e0164 ("HID: uhid: allow poll()'ing on uhid devices") Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> [bwh: Backported to 3.16: s/EPOLL/POLL/g] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/hid/uhid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -726,7 +726,7 @@ static unsigned int uhid_char_poll(struc if (uhid->head != uhid->tail) return POLLIN | POLLRDNORM; - return 0; + return POLLOUT | POLLWRNORM; } static const struct file_operations uhid_fops = {
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