vt: NULL dereference in vt_do_kdsk_ioctl()

We forgot to set the "key_map" variable here, so it's still NULL.  This
was introduced recently in 079c9534a9 "vt:tackle kbd_table".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 70d0593d3bc66331f942632130c7ddd802a65fbb..86dd1e302bb3f0989d52ba2b136d1ec39e29c488 100644 (file)
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -1863,6 +1863,7 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
                                return -EPERM;
                        }
                        key_maps[s] = new_map;
+                       key_map = new_map;
                        key_map[0] = U(K_ALLOCATED);
                        for (j = 1; j < NR_KEYS; j++)
                                key_map[j] = U(K_HOLE);