From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 90481629 for ; Wed, 2 Nov 2022 03:28:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B428C433D6; Wed, 2 Nov 2022 03:28:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1667359726; bh=jPrkWBJ/QSj+z5L997aHH0mqCNWcRBSmRzKwqbOD/sw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2hc6rcNsP/TjDRPDzdzdIHAeFzqJEsbPhcLmnxHRDyh+7Z028J2TRsUx3vPPb4eLP 8doS4KKRfQipQTC8wjQGCwBqL0SmSwr7SxPwG96pCWnRuosYW9ffMDg7SpUtSTA522 beKDEeaC3pcHrTQYz3QdTIT6EFFS4F+YD0+Z/Rx0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nulo , =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= , Benjamin Tissoires , Sasha Levin Subject: [PATCH 4.19 16/78] HID: magicmouse: Do not set BTN_MOUSE on double report Date: Wed, 2 Nov 2022 03:34:01 +0100 Message-Id: <20221102022053.441147898@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221102022052.895556444@linuxfoundation.org> References: <20221102022052.895556444@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: José Expósito [ Upstream commit bb5f0c855dcfc893ae5ed90e4c646bde9e4498bf ] Under certain conditions the Magic Trackpad can group 2 reports in a single packet. The packet is split and the raw event function is invoked recursively for each part. However, after processing each part, the BTN_MOUSE status is updated, sending multiple click events. [1] Return after processing double reports to avoid this issue. Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/811 # [1] Fixes: a462230e16ac ("HID: magicmouse: enable Magic Trackpad support") Reported-by: Nulo Signed-off-by: José Expósito Signed-off-by: Benjamin Tissoires Link: https://lore.kernel.org/r/20221009182747.90730-1-jose.exposito89@gmail.com Signed-off-by: Sasha Levin --- drivers/hid/hid-magicmouse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index 8af62696f2ca..5604175c0661 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -343,7 +343,7 @@ static int magicmouse_raw_event(struct hid_device *hdev, magicmouse_raw_event(hdev, report, data + 2, data[1]); magicmouse_raw_event(hdev, report, data + 2 + data[1], size - 2 - data[1]); - break; + return 0; default: return 0; } -- 2.35.1