Input: convert drivers to use strict_strtoul()
strict_strtoul() allows newline character at the end of the the input
string and therefore is more user-friendly.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index b1ce10f..4474572 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -1207,15 +1207,13 @@
{
struct input_dev *old_dev, *new_dev;
unsigned long value;
- char *rest;
int err;
unsigned char old_extra, old_set;
if (!atkbd->write)
return -EIO;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest || value > 1)
+ if (strict_strtoul(buf, 10, &value) || value > 1)
return -EINVAL;
if (atkbd->extra != value) {
@@ -1264,12 +1262,10 @@
{
struct input_dev *old_dev, *new_dev;
unsigned long value;
- char *rest;
int err;
unsigned char old_scroll;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest || value > 1)
+ if (strict_strtoul(buf, 10, &value) || value > 1)
return -EINVAL;
if (atkbd->scroll != value) {
@@ -1310,15 +1306,13 @@
{
struct input_dev *old_dev, *new_dev;
unsigned long value;
- char *rest;
int err;
unsigned char old_set, old_extra;
if (!atkbd->write)
return -EIO;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest || (value != 2 && value != 3))
+ if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
return -EINVAL;
if (atkbd->set != value) {
@@ -1361,15 +1355,13 @@
{
struct input_dev *old_dev, *new_dev;
unsigned long value;
- char *rest;
int err;
unsigned char old_softrepeat, old_softraw;
if (!atkbd->write)
return -EIO;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest || value > 1)
+ if (strict_strtoul(buf, 10, &value) || value > 1)
return -EINVAL;
if (atkbd->softrepeat != value) {
@@ -1413,12 +1405,10 @@
{
struct input_dev *old_dev, *new_dev;
unsigned long value;
- char *rest;
int err;
unsigned char old_softraw;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest || value > 1)
+ if (strict_strtoul(buf, 10, &value) || value > 1)
return -EINVAL;
if (atkbd->softraw != value) {
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index 0c5660d..390f1db 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -157,10 +157,8 @@
static ssize_t ps2pp_attr_set_smartscroll(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
unsigned long value;
- char *rest;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest || value > 1)
+ if (strict_strtoul(buf, 10, &value) || value > 1)
return -EINVAL;
ps2pp_set_smartscroll(psmouse, value);
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index f5a6be1..9fcb00b 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -1433,10 +1433,8 @@
{
unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset);
unsigned long value;
- char *rest;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest)
+ if (strict_strtoul(buf, 10, &value))
return -EINVAL;
if ((unsigned int)value != value)
@@ -1549,10 +1547,8 @@
static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
unsigned long value;
- char *rest;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest)
+ if (strict_strtoul(buf, 10, &value))
return -EINVAL;
psmouse->set_rate(psmouse, value);
@@ -1562,10 +1558,8 @@
static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
unsigned long value;
- char *rest;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest)
+ if (strict_strtoul(buf, 10, &value))
return -EINVAL;
psmouse->set_resolution(psmouse, value);
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c
index 26b845f..e68c814 100644
--- a/drivers/input/mouse/trackpoint.c
+++ b/drivers/input/mouse/trackpoint.c
@@ -89,10 +89,8 @@
struct trackpoint_attr_data *attr = data;
unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
unsigned long value;
- char *rest;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest || value > 255)
+ if (strict_strtoul(buf, 10, &value) || value > 255)
return -EINVAL;
*field = value;
@@ -117,10 +115,8 @@
struct trackpoint_attr_data *attr = data;
unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
unsigned long value;
- char *rest;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest || value > 1)
+ if (strict_strtoul(buf, 10, &value) || value > 1)
return -EINVAL;
if (attr->inverted)
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c
index 8f037a1..e53c838 100644
--- a/drivers/input/tablet/aiptek.c
+++ b/drivers/input/tablet/aiptek.c
@@ -1202,16 +1202,22 @@
store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
- int x;
+ long x;
- if (strcmp(buf, "disable") == 0) {
+ if (strict_strtol(buf, 10, &x)) {
+ size_t len = buf[count - 1] == '\n' ? count - 1 : count;
+
+ if (strncmp(buf, "disable", len))
+ return -EINVAL;
+
aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
} else {
- x = (int)simple_strtol(buf, NULL, 10);
- if (x >= AIPTEK_TILT_MIN && x <= AIPTEK_TILT_MAX) {
- aiptek->newSetting.xTilt = x;
- }
+ if (x < AIPTEK_TILT_MIN || x > AIPTEK_TILT_MAX)
+ return -EINVAL;
+
+ aiptek->newSetting.xTilt = x;
}
+
return count;
}
@@ -1238,16 +1244,22 @@
store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
- int y;
+ long y;
- if (strcmp(buf, "disable") == 0) {
+ if (strict_strtol(buf, 10, &y)) {
+ size_t len = buf[count - 1] == '\n' ? count - 1 : count;
+
+ if (strncmp(buf, "disable", len))
+ return -EINVAL;
+
aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
} else {
- y = (int)simple_strtol(buf, NULL, 10);
- if (y >= AIPTEK_TILT_MIN && y <= AIPTEK_TILT_MAX) {
- aiptek->newSetting.yTilt = y;
- }
+ if (y < AIPTEK_TILT_MIN || y > AIPTEK_TILT_MAX)
+ return -EINVAL;
+
+ aiptek->newSetting.yTilt = y;
}
+
return count;
}
@@ -1269,8 +1281,12 @@
store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
+ long j;
- aiptek->newSetting.jitterDelay = (int)simple_strtol(buf, NULL, 10);
+ if (strict_strtol(buf, 10, &j))
+ return -EINVAL;
+
+ aiptek->newSetting.jitterDelay = (int)j;
return count;
}
@@ -1294,8 +1310,12 @@
store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
+ long d;
- aiptek->newSetting.programmableDelay = (int)simple_strtol(buf, NULL, 10);
+ if (strict_strtol(buf, 10, &d))
+ return -EINVAL;
+
+ aiptek->newSetting.programmableDelay = (int)d;
return count;
}
@@ -1541,8 +1561,11 @@
store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct aiptek *aiptek = dev_get_drvdata(dev);
+ long w;
- aiptek->newSetting.wheel = (int)simple_strtol(buf, NULL, 10);
+ if (strict_strtol(buf, 10, &w)) return -EINVAL;
+
+ aiptek->newSetting.wheel = (int)w;
return count;
}
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index ce6f48c..efbbbe4 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -461,10 +461,11 @@
const char *buf, size_t count)
{
struct ads7846 *ts = dev_get_drvdata(dev);
- char *endp;
- int i;
+ long i;
- i = simple_strtoul(buf, &endp, 10);
+ if (strict_strtoul(buf, 10, &i))
+ return -EINVAL;
+
spin_lock_irq(&ts->lock);
if (i)