ext4: Use simple_strtol() instead of simple_strtoul() in ext4_ui_proc_open

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 3 insertions, 6 deletions

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 81aed8b825a0..8a0ae883f567 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3521,18 +3521,15 @@ static int ext4_ui_proc_open(struct inode *inode, struct file *file)
 static ssize_t ext4_ui_proc_write(struct file *file, const char __user *buf,
                                size_t cnt, loff_t *ppos)
 {
-        unsigned int *p = PDE(file->f_path.dentry->d_inode)->data;
+        unsigned long *p = PDE(file->f_path.dentry->d_inode)->data;
         char str[32];
-        unsigned long value;
 
         if (cnt >= sizeof(str))
                 return -EINVAL;
         if (copy_from_user(str, buf, cnt))
                 return -EFAULT;
-        value = simple_strtol(str, NULL, 0);
-        if (value < 0)
-                return -ERANGE;
-        *p = value;
+
+        *p = simple_strtoul(str, NULL, 0);
         return cnt;
 }