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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

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Pull input fixes from Dmitry Torokhov:

 - a fix for use-after-free in Synaptics RMI4 driver

 - correction to multitouch contact tracking on certain ALPS touchpads
   (which got broken when we tried to fix the 2-finger scrolling)

 - touchpad on Lenovo T640p is switched over to SMbus/RMI

 - a few device node refcount fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics-rmi4 - prevent UAF reported by KASAN
  Input: ALPS - fix multi-touch decoding on SS4 plus touchpads
  Input: synaptics - Lenovo Thinkpad T460p devices should use RMI
  Input: of_touchscreen - add MODULE_LICENSE
  Input: 88pm860x-ts - fix child-node lookup
  Input: twl6040-vibra - fix child-node lookup
  Input: twl4030-vibra - fix sibling-node lookup
This commit is contained in:
Linus Torvalds
2018-01-19 11:36:09 -08:00
parent 9bdbaeba93 55edde9fff
commit 672bb0fa9a
8 changed files with 44 additions and 23 deletions
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16
drivers/input/touchscreen/88pm860x-ts.c
View File

@@ -126,7 +126,7 @@ static int pm860x_touch_dt_init(struct platform_device *pdev,
int data, n, ret;
if (!np)
return -ENODEV;
np = of_find_node_by_name(np, "touch");
np = of_get_child_by_name(np, "touch");
if (!np) {
dev_err(&pdev->dev, "Can't find touch node\n");
return -EINVAL;
@@ -144,13 +144,13 @@ static int pm860x_touch_dt_init(struct platform_device *pdev,
if (data) {
ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data);
if (ret < 0)
return -EINVAL;
goto err_put_node;
}
/* set tsi prebias time */
if (!of_property_read_u32(np, "marvell,88pm860x-tsi-prebias", &data)) {
ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data);
if (ret < 0)
return -EINVAL;
goto err_put_node;
}
/* set prebias & prechg time of pen detect */
data = 0;
@@ -161,10 +161,18 @@ static int pm860x_touch_dt_init(struct platform_device *pdev,
if (data) {
ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data);
if (ret < 0)
return -EINVAL;
goto err_put_node;
}
of_property_read_u32(np, "marvell,88pm860x-resistor-X", res_x);
of_node_put(np);
return 0;
err_put_node:
of_node_put(np);
return -EINVAL;
}
#else
#define pm860x_touch_dt_init(x, y, z) (-1)

4
drivers/input/touchscreen/of_touchscreen.c
View File

@@ -13,6 +13,7 @@
#include <linux/input.h>
#include <linux/input/mt.h>
#include <linux/input/touchscreen.h>
#include <linux/module.h>
static bool touchscreen_get_prop_u32(struct device *dev,
const char *property,
@@ -185,3 +186,6 @@ void touchscreen_report_pos(struct input_dev *input,
input_report_abs(input, multitouch ? ABS_MT_POSITION_Y : ABS_Y, y);
}
EXPORT_SYMBOL(touchscreen_report_pos);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Device-tree helpers functions for touchscreen devices");