adb: get rid of pointless access_ok()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index fee939efc4fc6b2677be2c81546b0a90def15e84..039dc8285fc58b20b7ffc5513207415efdaadeee 100644 (file)
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -723,8 +723,6 @@ static ssize_t adb_read(struct file *file, char __user *buf,
                return -EINVAL;
        if (count > sizeof(req->reply))
                count = sizeof(req->reply);
-       if (!access_ok(VERIFY_WRITE, buf, count))
-               return -EFAULT;
 
        req = NULL;
        spin_lock_irqsave(&state->lock, flags);
@@ -781,8 +779,6 @@ static ssize_t adb_write(struct file *file, const char __user *buf,
                return -EINVAL;
        if (adb_controller == NULL)
                return -ENXIO;
-       if (!access_ok(VERIFY_READ, buf, count))
-               return -EFAULT;
 
        req = kmalloc(sizeof(struct adb_request),
                                             GFP_KERNEL);