linux-kernel - [PATCH] HID: nintendo: Add missing array termination

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Date:   Tue, 12 Jul 2022 15:17:05 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Jiri Kosina <jikos@...nel.org>
Cc:     Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Nergi Rahardi <nergi@...gle.com>,
        Guenter Roeck <linux@...ck-us.net>,
        "Daniel J . Ogorchock" <djogorchock@...il.com>
Subject: [PATCH] HID: nintendo: Add missing array termination

joycon_dpad_inputs_jc[] is unterminated. This may result in odd warnings
such as

input: input_set_capability: invalid code 3077588140 for type 1

or in kernel crashes in nintendo_hid_probe(). Terminate the array to fix
the problem.

Fixes: 2af16c1f846bd ("HID: nintendo: add nintendo switch controller driver")
Cc: Daniel J. Ogorchock <djogorchock@...il.com>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/hid/hid-nintendo.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c
index 2204de889739..4b1173957c17 100644
--- a/drivers/hid/hid-nintendo.c
+++ b/drivers/hid/hid-nintendo.c
@@ -1586,6 +1586,7 @@ static const unsigned int joycon_button_inputs_r[] = {
 /* We report joy-con d-pad inputs as buttons and pro controller as a hat. */
 static const unsigned int joycon_dpad_inputs_jc[] = {
 	BTN_DPAD_UP, BTN_DPAD_DOWN, BTN_DPAD_LEFT, BTN_DPAD_RIGHT,
+	0 /* 0 signals end of array */
 };
 
 static int joycon_input_create(struct joycon_ctlr *ctlr)
-- 
2.35.1