This patch fixes the miscoded use of return value of snprintf
by using the scnprintf function which returns the length of actual
string created in the buffer.
Signed-off-by: Harinath Nampally <harinath...@gmail.com>
---
drivers/staging/iio/light/tsl2x7x.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/staging/iio/light/tsl2x7x.c
b/drivers/staging/iio/light/tsl2x7x.c
index 1467199..6908bc1 100644
--- a/drivers/staging/iio/light/tsl2x7x.c
+++ b/drivers/staging/iio/light/tsl2x7x.c
@@ -921,7 +921,7 @@ static ssize_t power_state_show(struct device *dev,
{
struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
- return snprintf(buf, PAGE_SIZE, "%d\n", chip->tsl2x7x_chip_status);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", chip->tsl2x7x_chip_status);
}
static ssize_t power_state_store(struct device *dev,
@@ -954,17 +954,17 @@ static ssize_t
in_illuminance0_calibscale_available_show(struct device *dev,
case tmd2671:
case tsl2771:
case tmd2771:
- return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 128");
+ return scnprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 128");
}
- return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 120");
+ return scnprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 120");
}
static ssize_t in_proximity0_calibscale_available_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%s\n", "1 2 4 8");
+ return scnprintf(buf, PAGE_SIZE, "%s\n", "1 2 4 8");
}
static ssize_t in_illuminance0_integration_time_show(struct device *dev,
@@ -979,7 +979,7 @@ static ssize_t in_illuminance0_integration_time_show(struct
device *dev,
y /= 1000;
z %= 1000;
- return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
+ return scnprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
}
static ssize_t in_illuminance0_integration_time_store(struct device *dev,
@@ -1016,7 +1016,7 @@ static ssize_t in_illuminance0_target_input_show(struct
device *dev,
{
struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
- return snprintf(buf, PAGE_SIZE, "%d\n",
+ return scnprintf(buf, PAGE_SIZE, "%d\n",
chip->tsl2x7x_settings.als_cal_target);
}
@@ -1054,7 +1054,7 @@ static ssize_t in_intensity0_thresh_period_show(struct
device *dev,
y = filter_delay / 1000;
z = filter_delay % 1000;
- return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
+ return scnprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
}
static ssize_t in_intensity0_thresh_period_store(struct device *dev,
@@ -1102,7 +1102,7 @@ static ssize_t in_proximity0_thresh_period_show(struct
device *dev,
y = filter_delay / 1000;
z = filter_delay % 1000;
- return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
+ return scnprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
}
static ssize_t in_proximity0_thresh_period_store(struct device *dev,
@@ -1163,7 +1163,7 @@ static ssize_t in_illuminance0_lux_table_show(struct
device *dev,
int offset = 0;
while (i < (TSL2X7X_MAX_LUX_TABLE_SIZE * 3)) {
- offset += snprintf(buf + offset, PAGE_SIZE, "%u,%u,%u,",
+ offset += scnprintf(buf + offset, PAGE_SIZE, "%u,%u,%u,",
chip->tsl2x7x_device_lux[i].ratio,
chip->tsl2x7x_device_lux[i].ch0,
chip->tsl2x7x_device_lux[i].ch1);
@@ -1178,7 +1178,7 @@ static ssize_t in_illuminance0_lux_table_show(struct
device *dev,
i++;
}
- offset += snprintf(buf + offset, PAGE_SIZE, "\n");
+ offset += scnprintf(buf + offset, PAGE_SIZE, "\n");
return offset;
}
--
2.7.4
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