[PATCH] vt: keyboard, fix uninitialized variables warning

[Li Wang]

drivers/tty/vt/keyboard.c: In function 'vt_do_kdgkb_ioctl':
drivers/tty/vt/keyboard.c: warning: 'ret' may be used uninitialized in this 
function [-Wmaybe-uninitialized]
  return ret;
         ^~~
kernel-source/drivers/tty/vt/keyboard.c: warning: 'kbs' may be used 
uninitialized in this function [-Wmaybe-uninitialized]
  kfree(kbs);
  ^~~~~~~~~~

Signed-off-by: Li Wang <li.w...@windriver.com>
---
 drivers/tty/vt/keyboard.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 7763862..3e73d55 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -2049,8 +2049,8 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user 
*user_kdgkb, int perm)
 {
        unsigned char kb_func;
        unsigned long flags;
-       char *kbs;
-       int ret;
+       char *kbs = NULL;
+       int ret = -EINVAL;
 
        if (get_user(kb_func, &user_kdgkb->kb_func))
                return -EFAULT;
-- 
2.7.4