[PATCH V3] misc: replace strict_strtoul() with kstrtoul()

Jingoo Han
2013-06-04T04:15:21Z

The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
Changes since v1:
- Split to two sequential checks.
- Replaced kstrtoul() & copy_from_user() with kstrtoul_from_user().
- Added Andy Shevchenko's Reviewed-by.

Changes since v1:
- Used return code from kstrtoul().

drivers/misc/ad525x_dpot.c | 2 +-
drivers/misc/apds9802als.c | 5 +--
drivers/misc/apds990x.c | 37 ++++++++++++-------
drivers/misc/bh1770glc.c | 59 ++++++++++++++++++++-----------
drivers/misc/bh1780gli.c | 2 +-
drivers/misc/carma/carma-fpga-program.c | 10 +++---
drivers/misc/carma/carma-fpga.c | 4 +--
drivers/misc/hmc6352.c | 5 +--
drivers/misc/isl29003.c | 24 ++++++++++---
drivers/misc/isl29020.c | 6 ++--
drivers/misc/lis3lv02d/lis3lv02d.c | 6 ++--
drivers/misc/sgi-gru/gruprocfs.c | 14 +++-----
drivers/misc/spear13xx_pcie_gadget.c | 57 +++++++++++++++++++----------
drivers/misc/ti_dac7512.c | 6 ++--
14 files changed, 154 insertions(+), 83 deletions(-)

diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c
index 8f99e8e..0daadcf 100644
--- a/drivers/misc/ad525x_dpot.c
+++ b/drivers/misc/ad525x_dpot.c
@@ -470,7 +470,7 @@ static ssize_t sysfs_set_reg(struct device *dev,
!test_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask))
return -EPERM;

- err = strict_strtoul(buf, 10, &value);
+ err = kstrtoul(buf, 10, &value);
if (err)
return err;

diff --git a/drivers/misc/apds9802als.c b/drivers/misc/apds9802als.c
index 5b5fd84..0c6e037 100644
--- a/drivers/misc/apds9802als.c
+++ b/drivers/misc/apds9802als.c
@@ -126,8 +126,9 @@ static ssize_t als_sensing_range_store(struct device *dev,
int ret_val;
unsigned long val;

- if (strict_strtoul(buf, 10, &val))
- return -EINVAL;
+ ret_val = kstrtoul(buf, 10, &val);
+ if (ret_val)
+ return ret_val;

if (val < 4096)
val = 1;
diff --git a/drivers/misc/apds990x.c b/drivers/misc/apds990x.c
index 98f9bb2..868a30a 100644
--- a/drivers/misc/apds990x.c
+++ b/drivers/misc/apds990x.c
@@ -696,9 +696,11 @@ static ssize_t apds990x_lux_calib_store(struct device *dev,
{
struct apds990x_chip *chip = dev_get_drvdata(dev);
unsigned long value;
+ int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

chip->lux_calib = value;

@@ -759,8 +761,9 @@ static ssize_t apds990x_rate_store(struct device *dev,
unsigned long value;
int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

mutex_lock(&chip->mutex);
ret = apds990x_set_arate(chip, value);
@@ -813,9 +816,11 @@ static ssize_t apds990x_prox_enable_store(struct device *dev,
{
struct apds990x_chip *chip = dev_get_drvdata(dev);
unsigned long value;
+ int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

mutex_lock(&chip->mutex);

@@ -892,11 +897,12 @@ static ssize_t apds990x_lux_thresh_below_show(struct device *dev,
static ssize_t apds990x_set_lux_thresh(struct apds990x_chip *chip, u32 *target,
const char *buf)
{
- int ret = 0;
unsigned long thresh;
+ int ret;

- if (strict_strtoul(buf, 0, &thresh))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &thresh);
+ if (ret)
+ return ret;

if (thresh > APDS_RANGE)
return -EINVAL;
@@ -957,9 +963,11 @@ static ssize_t apds990x_prox_threshold_store(struct device *dev,
{
struct apds990x_chip *chip = dev_get_drvdata(dev);
unsigned long value;
+ int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

if ((value > APDS_RANGE) || (value == 0) ||
(value < APDS_PROX_HYSTERESIS))
@@ -990,9 +998,12 @@ static ssize_t apds990x_power_state_store(struct device *dev,
{
struct apds990x_chip *chip = dev_get_drvdata(dev);
unsigned long value;
+ int ret;
+
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
if (value) {
pm_runtime_get_sync(dev);
mutex_lock(&chip->mutex);
diff --git a/drivers/misc/bh1770glc.c b/drivers/misc/bh1770glc.c
index f4975f7..99a0468 100644
--- a/drivers/misc/bh1770glc.c
+++ b/drivers/misc/bh1770glc.c
@@ -651,8 +651,9 @@ static ssize_t bh1770_power_state_store(struct device *dev,
unsigned long value;
ssize_t ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

mutex_lock(&chip->mutex);
if (value) {
@@ -726,9 +727,11 @@ static ssize_t bh1770_prox_enable_store(struct device *dev,
{
struct bh1770_chip *chip = dev_get_drvdata(dev);
unsigned long value;
+ int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

mutex_lock(&chip->mutex);
/* Assume no proximity. Sensor will tell real state soon */
@@ -824,9 +827,11 @@ static ssize_t bh1770_set_prox_rate_above(struct device *dev,
{
struct bh1770_chip *chip = dev_get_drvdata(dev);
unsigned long value;
+ int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

mutex_lock(&chip->mutex);
chip->prox_rate_threshold = bh1770_prox_rate_validate(value);
@@ -840,9 +845,11 @@ static ssize_t bh1770_set_prox_rate_below(struct device *dev,
{
struct bh1770_chip *chip = dev_get_drvdata(dev);
unsigned long value;
+ int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

mutex_lock(&chip->mutex);
chip->prox_rate = bh1770_prox_rate_validate(value);
@@ -865,8 +872,10 @@ static ssize_t bh1770_set_prox_thres(struct device *dev,
unsigned long value;
int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;
+
if (value > BH1770_PROX_RANGE)
return -EINVAL;

@@ -893,9 +902,11 @@ static ssize_t bh1770_prox_persistence_store(struct device *dev,
{
struct bh1770_chip *chip = dev_get_drvdata(dev);
unsigned long value;
+ int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

if (value > BH1770_PROX_MAX_PERSISTENCE)
return -EINVAL;
@@ -918,9 +929,11 @@ static ssize_t bh1770_prox_abs_thres_store(struct device *dev,
{
struct bh1770_chip *chip = dev_get_drvdata(dev);
unsigned long value;
+ int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

if (value > BH1770_PROX_RANGE)
return -EINVAL;
@@ -963,9 +976,11 @@ static ssize_t bh1770_lux_calib_store(struct device *dev,
unsigned long value;
u32 old_calib;
u32 new_corr;
+ int ret;

- if (strict_strtoul(buf, 0, &value))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &value);
+ if (ret)
+ return ret;

mutex_lock(&chip->mutex);
old_calib = chip->lux_calib;
@@ -1012,8 +1027,9 @@ static ssize_t bh1770_set_lux_rate(struct device *dev,
unsigned long rate_hz;
int ret, i;

- if (strict_strtoul(buf, 0, &rate_hz))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &rate_hz);
+ if (ret)
+ return ret;

for (i = 0; i < ARRAY_SIZE(lux_rates_hz) - 1; i++)
if (rate_hz >= lux_rates_hz[i])
@@ -1047,11 +1063,12 @@ static ssize_t bh1770_get_lux_thresh_below(struct device *dev,
static ssize_t bh1770_set_lux_thresh(struct bh1770_chip *chip, u16 *target,
const char *buf)
{
- int ret = 0;
unsigned long thresh;
+ int ret;

- if (strict_strtoul(buf, 0, &thresh))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &thresh);
+ if (ret)
+ return ret;

if (thresh > BH1770_LUX_RANGE)
return -EINVAL;
diff --git a/drivers/misc/bh1780gli.c b/drivers/misc/bh1780gli.c
index 818f3a0..057580e 100644
--- a/drivers/misc/bh1780gli.c
+++ b/drivers/misc/bh1780gli.c
@@ -107,7 +107,7 @@ static ssize_t bh1780_store_power_state(struct device *dev,
unsigned long val;
int error;

- error = strict_strtoul(buf, 0, &val);
+ error = kstrtoul(buf, 0, &val);
if (error)
return error;

diff --git a/drivers/misc/carma/carma-fpga-program.c b/drivers/misc/carma/carma-fpga-program.c
index fa017cf..c6bd7e8 100644
--- a/drivers/misc/carma/carma-fpga-program.c
+++ b/drivers/misc/carma/carma-fpga-program.c
@@ -830,8 +830,9 @@ static ssize_t penable_store(struct device *dev, struct device_attribute *attr,
unsigned long val;
int ret;

- if (strict_strtoul(buf, 0, &val))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;

if (val) {
ret = fpga_enable_power_supplies(priv);
@@ -859,8 +860,9 @@ static ssize_t program_store(struct device *dev, struct device_attribute *attr,
unsigned long val;
int ret;

- if (strict_strtoul(buf, 0, &val))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;

/* We can't have an image writer and be programming simultaneously */
if (mutex_lock_interruptible(&priv->lock))
diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c
index a2128af..7b56563 100644
--- a/drivers/misc/carma/carma-fpga.c
+++ b/drivers/misc/carma/carma-fpga.c
@@ -1002,10 +1002,10 @@ static ssize_t data_en_set(struct device *dev, struct device_attribute *attr,
unsigned long enable;
int ret;

- ret = strict_strtoul(buf, 0, &enable);
+ ret = kstrtoul(buf, 0, &enable);
if (ret) {
dev_err(priv->dev, "unable to parse enable input\n");
- return -EINVAL;
+ return ret;
}

/* protect against concurrent enable/disable */
diff --git a/drivers/misc/hmc6352.c b/drivers/misc/hmc6352.c
index 423cd40..170bd3d 100644
--- a/drivers/misc/hmc6352.c
+++ b/drivers/misc/hmc6352.c
@@ -46,8 +46,9 @@ static int compass_store(struct device *dev, const char *buf, size_t count,
int ret;
unsigned long val;

- if (strict_strtoul(buf, 10, &val))
- return -EINVAL;
+ ret = kstrtoul(buf, 10, &val);
+ if (ret)
+ return ret;
if (val >= strlen(map))
return -EINVAL;
mutex_lock(&compass_mutex);
diff --git a/drivers/misc/isl29003.c b/drivers/misc/isl29003.c
index c5145b3..e3183f2 100644
--- a/drivers/misc/isl29003.c
+++ b/drivers/misc/isl29003.c
@@ -208,7 +208,11 @@ static ssize_t isl29003_store_range(struct device *dev,
unsigned long val;
int ret;

- if ((strict_strtoul(buf, 10, &val) < 0) || (val > 3))
+ ret = kstrtoul(buf, 10, &val);
+ if (ret)
+ return ret;
+
+ if (val > 3)
return -EINVAL;

ret = isl29003_set_range(client, val);
@@ -239,7 +243,11 @@ static ssize_t isl29003_store_resolution(struct device *dev,
unsigned long val;
int ret;

- if ((strict_strtoul(buf, 10, &val) < 0) || (val > 3))
+ ret = kstrtoul(buf, 10, &val);
+ if (ret)
+ return ret;
+
+ if (val > 3)
return -EINVAL;

ret = isl29003_set_resolution(client, val);
@@ -267,7 +275,11 @@ static ssize_t isl29003_store_mode(struct device *dev,
unsigned long val;
int ret;

- if ((strict_strtoul(buf, 10, &val) < 0) || (val > 2))
+ ret = kstrtoul(buf, 10, &val);
+ if (ret)
+ return ret;
+
+ if (val > 2)
return -EINVAL;

ret = isl29003_set_mode(client, val);
@@ -298,7 +310,11 @@ static ssize_t isl29003_store_power_state(struct device *dev,
unsigned long val;
int ret;

- if ((strict_strtoul(buf, 10, &val) < 0) || (val > 1))
+ ret = kstrtoul(buf, 10, &val);
+ if (ret)
+ return ret;
+
+ if (val > 1)
return -EINVAL;

ret = isl29003_set_power_state(client, val);
diff --git a/drivers/misc/isl29020.c b/drivers/misc/isl29020.c
index 0aa08c7..b7f84da 100644
--- a/drivers/misc/isl29020.c
+++ b/drivers/misc/isl29020.c
@@ -90,8 +90,10 @@ static ssize_t als_sensing_range_store(struct device *dev,
int ret_val;
unsigned long val;

- if (strict_strtoul(buf, 10, &val))
- return -EINVAL;
+ ret_val = kstrtoul(buf, 10, &val);
+ if (ret_val)
+ return ret_val;
+
if (val < 1 || val > 64000)
return -EINVAL;

diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
index 4cd4a3d..036effe 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
@@ -831,9 +831,11 @@ static ssize_t lis3lv02d_rate_set(struct device *dev,
{
struct lis3lv02d *lis3 = dev_get_drvdata(dev);
unsigned long rate;
+ int ret;

- if (strict_strtoul(buf, 0, &rate))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &rate);
+ if (ret)
+ return ret;

lis3lv02d_sysfs_poweron(lis3);
if (lis3lv02d_set_odr(lis3, rate))
diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
index 797d796..4f76359 100644
--- a/drivers/misc/sgi-gru/gruprocfs.c
+++ b/drivers/misc/sgi-gru/gruprocfs.c
@@ -160,15 +160,11 @@ static int options_show(struct seq_file *s, void *p)
static ssize_t options_write(struct file *file, const char __user *userbuf,
size_t count, loff_t *data)
{
- char buf[20];
-
- if (count >= sizeof(buf))
- return -EINVAL;
- if (copy_from_user(buf, userbuf, count))
- return -EFAULT;
- buf[count] = '\0';
- if (strict_strtoul(buf, 0, &gru_options))
- return -EINVAL;
+ int ret;
+
+ ret = kstrtoul_from_user(userbuf, count, 0, &gru_options);
+ if (ret)
+ return ret;

return count;
}
diff --git a/drivers/misc/spear13xx_pcie_gadget.c b/drivers/misc/spear13xx_pcie_gadget.c
index 84a8dab..807727f 100644
--- a/drivers/misc/spear13xx_pcie_gadget.c
+++ b/drivers/misc/spear13xx_pcie_gadget.c
@@ -316,8 +316,12 @@ static ssize_t pcie_gadget_store_no_of_msi(
struct spear_pcie_gadget_config *config,
const char *buf, size_t count)
{
- if (strict_strtoul(buf, 0, &config->requested_msi))
- return -EINVAL;
+ int ret;
+
+ ret = kstrtoul(buf, 0, &config->requested_msi);
+ if (ret)
+ return ret;
+
if (config->requested_msi > 32)
config->requested_msi = 32;

@@ -330,9 +334,11 @@ static ssize_t pcie_gadget_store_inta(
{
struct pcie_app_reg __iomem *app_reg = config->va_app_base;
ulong en;
+ int ret;

- if (strict_strtoul(buf, 0, &en))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &en);
+ if (ret)
+ return ret;

if (en)
writel(readl(&app_reg->app_ctrl_0) | (1 << SYS_INT_ID),
@@ -351,9 +357,11 @@ static ssize_t pcie_gadget_store_send_msi(
struct pcie_app_reg __iomem *app_reg = config->va_app_base;
ulong vector;
u32 ven_msi;
+ int ret;

- if (strict_strtoul(buf, 0, &vector))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &vector);
+ if (ret)
+ return ret;

if (!config->configured_msi)
return -EINVAL;
@@ -395,9 +403,11 @@ static ssize_t pcie_gadget_store_vendor_id(
const char *buf, size_t count)
{
ulong id;
+ int ret;

- if (strict_strtoul(buf, 0, &id))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &id);
+ if (ret)
+ return ret;

spear_dbi_write_reg(config, PCI_VENDOR_ID, 2, id);

@@ -420,9 +430,11 @@ static ssize_t pcie_gadget_store_device_id(
const char *buf, size_t count)
{
ulong id;
+ int ret;

- if (strict_strtoul(buf, 0, &id))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &id);
+ if (ret)
+ return ret;

spear_dbi_write_reg(config, PCI_DEVICE_ID, 2, id);

@@ -443,9 +455,12 @@ static ssize_t pcie_gadget_store_bar0_size(
ulong size;
u32 pos, pos1;
u32 no_of_bit = 0;
+ int ret;
+
+ ret = kstrtoul(buf, 0, &size);
+ if (ret)
+ return ret;

- if (strict_strtoul(buf, 0, &size))
- return -EINVAL;
/* min bar size is 256 */
if (size <= 0x100)
size = 0x100;
@@ -490,9 +505,11 @@ static ssize_t pcie_gadget_store_bar0_address(
{
struct pcie_app_reg __iomem *app_reg = config->va_app_base;
ulong address;
+ int ret;

- if (strict_strtoul(buf, 0, &address))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &address);
+ if (ret)
+ return ret;

address &= ~(config->bar0_size - 1);
if (config->va_bar0_address)
@@ -518,9 +535,11 @@ static ssize_t pcie_gadget_store_bar0_rw_offset(
const char *buf, size_t count)
{
ulong offset;
+ int ret;

- if (strict_strtoul(buf, 0, &offset))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &offset);
+ if (ret)
+ return ret;

if (offset % 4)
return -EINVAL;
@@ -549,9 +568,11 @@ static ssize_t pcie_gadget_store_bar0_data(
const char *buf, size_t count)
{
ulong data;
+ int ret;

- if (strict_strtoul(buf, 0, &data))
- return -EINVAL;
+ ret = kstrtoul(buf, 0, &data);
+ if (ret)
+ return ret;

if (!config->va_bar0_address)
return -ENOMEM;
diff --git a/drivers/misc/ti_dac7512.c b/drivers/misc/ti_dac7512.c
index 1d86407..9b23722 100644
--- a/drivers/misc/ti_dac7512.c
+++ b/drivers/misc/ti_dac7512.c
@@ -33,9 +33,11 @@ static ssize_t dac7512_store_val(struct device *dev,
struct spi_device *spi = to_spi_device(dev);
unsigned char tmp[2];
unsigned long val;
+ int ret;

- if (strict_strtoul(buf, 10, &val) < 0)
- return -EINVAL;
+ ret = kstrtoul(buf, 10, &val);
+ if (ret)
+ return ret;

tmp[0] = val >> 8;
tmp[1] = val & 0xff;
--
1.7.10.4