[PATCH 06/22 v4] Input: atmel_mxt_ts - use scnprintf for object sysfs entry

[Daniel Kurtz]

Using scnprintf() is a cleaner way to ensure that we don't overwrite the
PAGE_SIZE sysfs output buffer.

Signed-off-by: Daniel Kurtz <djkurtz@xxxxxxxxxxxx>
---
 drivers/input/touchscreen/atmel_mxt_ts.c |   16 ++++------------
 1 files changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 5eee68d..472ab29 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -903,17 +903,13 @@ static ssize_t mxt_object_show(struct device *dev,
 	for (i = 0; i < data->info.object_num; i++) {
 		object = data->object_table + i;
 
-		count += snprintf(buf + count, PAGE_SIZE - count,
+		count += scnprintf(buf + count, PAGE_SIZE - count,
 				"Object[%d] (Type %d)\n",
 				i + 1, object->type);
-		if (count >= PAGE_SIZE)
-			return PAGE_SIZE - 1;
 
 		if (!mxt_object_readable(object->type)) {
-			count += snprintf(buf + count, PAGE_SIZE - count,
+			count += scnprintf(buf + count, PAGE_SIZE - count,
 					"\n");
-			if (count >= PAGE_SIZE)
-				return PAGE_SIZE - 1;
 			continue;
 		}
 
@@ -923,15 +919,11 @@ static ssize_t mxt_object_show(struct device *dev,
 			if (error)
 				return error;
 
-			count += snprintf(buf + count, PAGE_SIZE - count,
+			count += scnprintf(buf + count, PAGE_SIZE - count,
 					"\t[%2d]: %02x (%d)\n", j, val, val);
-			if (count >= PAGE_SIZE)
-				return PAGE_SIZE - 1;
 		}
 
-		count += snprintf(buf + count, PAGE_SIZE - count, "\n");
-		if (count >= PAGE_SIZE)
-			return PAGE_SIZE - 1;
+		count += scnprintf(buf + count, PAGE_SIZE - count, "\n");
 	}
 
 	return count;
-- 
1.7.7.3

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