linux-kernel - [PATCH 3.17 101/319] Input: alps - fix v4 button press recognition

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 12 Nov 2014 10:13:59 +0900
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Andreas Bosch <linux@...gandy.de>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: [PATCH 3.17 101/319] Input: alps - fix v4 button press recognition

3.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andreas Bosch <linux@...gandy.de>

commit b0cfb794a3dd1d699f3e453f9180bd06508fb8f0 upstream.

Since the change to struct input_mt_pos some variables are now bitfields
instead of integers. Automatic conversion from integer to bitfield entry
destroys information, therefore enforce boolean interpretation instead.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1114768
Fixes: 02d04254a5df ("Input: alps - use struct input_mt_pos to track coordinates")
Signed-off-by: Andreas Bosch <linux@...gandy.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/input/mouse/alps.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -835,8 +835,8 @@ static void alps_process_packet_v4(struc
 		f->fingers = alps_process_bitmap(priv, f);
 	}
 
-	f->left = packet[4] & 0x01;
-	f->right = packet[4] & 0x02;
+	f->left = !!(packet[4] & 0x01);
+	f->right = !!(packet[4] & 0x02);
 
 	f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
 		  ((packet[0] & 0x30) >> 4);


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/