3.16.83-rc1 review patch. If anyone has any objections, please let me know.
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From: Marcel Holtmann <marcel@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
[bwh: Backported to 3.16: s/EPOLL/POLL/g]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
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 = {
