1 files changed, 6 insertions, 12 deletions

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index a978449ab04d..463ffa4fe042 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -281,11 +281,9 @@ static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *at
 static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
         struct hci_dev *hdev = dev_get_drvdata(dev);
-        char *ptr;
-        __u32 val;
+        unsigned long val;
 
-        val = simple_strtoul(buf, &ptr, 10);
-        if (ptr == buf)
+        if (strict_strtoul(buf, 0, &val) < 0)
                 return -EINVAL;
 
         if (val != 0 && (val < 500 || val > 3600000))
@@ -305,11 +303,9 @@ static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribu
 static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
         struct hci_dev *hdev = dev_get_drvdata(dev);
-        char *ptr;
-        __u16 val;
+        unsigned long val;
 
-        val = simple_strtoul(buf, &ptr, 10);
-        if (ptr == buf)
+        if (strict_strtoul(buf, 0, &val) < 0)
                 return -EINVAL;
 
         if (val < 0x0002 || val > 0xFFFE || val % 2)
@@ -332,11 +328,9 @@ static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribu
 static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
         struct hci_dev *hdev = dev_get_drvdata(dev);
-        char *ptr;
-        __u16 val;
+        unsigned long val;
 
-        val = simple_strtoul(buf, &ptr, 10);
-        if (ptr == buf)
+        if (strict_strtoul(buf, 0, &val) < 0)
                 return -EINVAL;
 
         if (val < 0x0002 || val > 0xFFFE || val % 2)