HID: logitech-dj: Allow incoming packets during probe().

Historically, logitech-dj communicated with the device during probe()
to query the list of devices attached. Later, a change was introduced
to hid-core that prevented incoming packets for a device during
probe(), as many drivers are unable to handle such input. That change
broke the device enumeration in logitech-dj, so commit
596264082f10dd4a56 was introduced to workaround that by waiting for
normal input before enumerating devices.

Now that drivers can opt-in to receive input during probe, this patch
changes logitech-dj to do that, so that it can successfully complete
enumeration of devices during probe().

Signed-off-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 9500f2f3f8fe..bf647ef18086 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -803,6 +803,9 @@ static int logi_dj_probe(struct hid_device *hdev,
                 goto llopen_failed;
         }
 
+        /* Allow incoming packets to arrive: */
+        hid_device_io_start(hdev);
+
         retval = logi_dj_recv_query_paired_devices(djrcv_dev);
         if (retval < 0) {
                 dev_err(&hdev->dev, "%s:logi_dj_recv_query_paired_devices "