fuse: Convert to kstrtoul_from_user

This patch replaces the code for getting an number from a
userspace buffer by a simple call to kstroul_from_user.
This makes it easier to read and less error prone.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>

diff --git a/fs/fuse/control.c b/fs/fuse/control.c
index 42593c5..03ff5b1 100644 (file)
--- a/fs/fuse/control.c
+++ b/fs/fuse/control.c
@@ -75,19 +75,13 @@ static ssize_t fuse_conn_limit_write(struct file *file, const char __user *buf,
                                     unsigned global_limit)
 {
        unsigned long t;
-       char tmp[32];
        unsigned limit = (1 << 16) - 1;
        int err;
 
-       if (*ppos || count >= sizeof(tmp) - 1)
-               return -EINVAL;
-
-       if (copy_from_user(tmp, buf, count))
+       if (*ppos)
                return -EINVAL;
 
-       tmp[count] = '\0';
-
-       err = strict_strtoul(tmp, 0, &t);
+       err = kstrtoul_from_user(buf, count, 0, &t);
        if (err)
                return err;