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authorLinus Torvalds <torvalds@linux-foundation.org>2016-06-28 05:34:43 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2016-06-28 05:34:43 +0200
commit18751e2eb51261059e51e1a7cf5aec2fd5429608 (patch)
tree6b41c4d5826e004932935cbe1917251fc1b130de /drivers/input/touchscreen
parentMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmar... (diff)
parentInput: vmmouse - remove port reservation (diff)
downloadlinux-18751e2eb51261059e51e1a7cf5aec2fd5429608.tar.xz
linux-18751e2eb51261059e51e1a7cf5aec2fd5429608.zip
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: vmmouse - remove port reservation Input: elantech - add more IC body types to the list Input: wacom_w8001 - ignore invalid pen data packets Input: wacom_w8001 - w8001_MAX_LENGTH should be 13 Input: xpad - fix oops when attaching an unknown Xbox One gamepad MAINTAINERS: add Pali Rohár as reviewer of ALPS PS/2 touchpad driver Input: add HDMI CEC specific keycodes Input: add BUS_CEC type Input: xpad - fix rumble on Xbox One controllers with 2015 firmware
Diffstat (limited to 'drivers/input/touchscreen')
-rw-r--r--drivers/input/touchscreen/wacom_w8001.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index bab3c6acf6a2..0c9191cf324d 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -27,7 +27,7 @@ MODULE_AUTHOR("Jaya Kumar <jayakumar.lkml@gmail.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-#define W8001_MAX_LENGTH 11
+#define W8001_MAX_LENGTH 13
#define W8001_LEAD_MASK 0x80
#define W8001_LEAD_BYTE 0x80
#define W8001_TAB_MASK 0x40
@@ -339,6 +339,15 @@ static irqreturn_t w8001_interrupt(struct serio *serio,
w8001->idx = 0;
parse_multi_touch(w8001);
break;
+
+ default:
+ /*
+ * ThinkPad X60 Tablet PC (pen only device) sometimes
+ * sends invalid data packets that are larger than
+ * W8001_PKTLEN_TPCPEN. Let's start over again.
+ */
+ if (!w8001->touch_dev && w8001->idx > W8001_PKTLEN_TPCPEN - 1)
+ w8001->idx = 0;
}
return IRQ_HANDLED;