4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
[ Upstream commit ce6f7d087e2b037f47349c1c36ac97678d02e394 ]
kbdif protocol describes multi-touch device parameters as a
part of frontend's XenBus configuration nodes while they
belong to backend's configuration. Fix this by reading the
parameters as defined by the protocol.
Fixes: 49aac8204da5 ("Input: xen-kbdfront - add multi-touch support")
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/misc/xen-kbdfront.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/input/misc/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -229,7 +229,7 @@ static int xenkbd_probe(struct xenbus_de
}
}
- touch = xenbus_read_unsigned(dev->nodename,
+ touch = xenbus_read_unsigned(dev->otherend,
XENKBD_FIELD_FEAT_MTOUCH, 0);
if (touch) {
ret = xenbus_write(XBT_NIL, dev->nodename,
@@ -304,13 +304,13 @@ static int xenkbd_probe(struct xenbus_de
if (!mtouch)
goto error_nomem;
- num_cont = xenbus_read_unsigned(info->xbdev->nodename,
+ num_cont = xenbus_read_unsigned(info->xbdev->otherend,
XENKBD_FIELD_MT_NUM_CONTACTS,
1);
- width = xenbus_read_unsigned(info->xbdev->nodename,
+ width = xenbus_read_unsigned(info->xbdev->otherend,
XENKBD_FIELD_MT_WIDTH,
XENFB_WIDTH);
- height = xenbus_read_unsigned(info->xbdev->nodename,
+ height = xenbus_read_unsigned(info->xbdev->otherend,
XENKBD_FIELD_MT_HEIGHT,
XENFB_HEIGHT);
