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| author | Marcel Holtmann <marcel@holtmann.org> | 2019-12-04 05:43:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-14 22:08:23 +0300 |
| commit | 566dbc0db3fc58335df35336083feb44649051a3 (patch) | |
| tree | e70cbe1854b0e12a3068344727386e8965021cc5 | |
| parent | 2cc7eb656286e761fec47eccccacc953db6e0cff (diff) | |
| download | linux-566dbc0db3fc58335df35336083feb44649051a3.tar.xz | |
HID: uhid: Fix returning EPOLLOUT from uhid_char_poll
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>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/hid/uhid.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c index fa0cc0899827..935c3d0a3b63 100644 --- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -772,7 +772,7 @@ static __poll_t uhid_char_poll(struct file *file, poll_table *wait) if (uhid->head != uhid->tail) return EPOLLIN | EPOLLRDNORM; - return 0; + return EPOLLOUT | EPOLLWRNORM; } static const struct file_operations uhid_fops = { |