linux-kernel - [PATCH v3 07/19] HID: logitech-hidpp: retrieve the HID++ device name when available

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Message-Id: <20170327145939.29824-8-benjamin.tissoires@redhat.com>
Date:   Mon, 27 Mar 2017 16:59:27 +0200
From:   Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:     Jiri Kosina <jikos@...nel.org>, Bastien Nocera <hadess@...ess.net>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 07/19] HID: logitech-hidpp: retrieve the HID++ device name when available

hidpp->name can't be null.
Only HID++ 2.0 and above device supports the query.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>

---

changes in v3:
- moved up in the series

new in v2
---
 drivers/hid/hid-logitech-hidpp.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index db15cfc..b0d2fea 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -2443,13 +2443,7 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
 			 hidpp->protocol_major, hidpp->protocol_minor);
 	}
 
-	hidpp_initialize_battery(hidpp);
-
-	if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT))
-		/* if HID created the input nodes for us, we can stop now */
-		return;
-
-	if (!hidpp->name || hidpp->name == hdev->name) {
+	if (hidpp->name == hdev->name && hidpp->protocol_major >= 2) {
 		name = hidpp_get_device_name(hidpp);
 		if (!name) {
 			hid_err(hdev,
@@ -2465,6 +2459,12 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
 		hidpp->name = devm_name;
 	}
 
+	hidpp_initialize_battery(hidpp);
+
+	if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT))
+		/* if HID created the input nodes for us, we can stop now */
+		return;
+
 	input = hidpp_allocate_input(hdev);
 	if (!input) {
 		hid_err(hdev, "cannot allocate new input device: %d\n", ret);
-- 
2.9.3