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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>
This commit is contained in:
Dan Carpenter 2012-03-10 11:59:23 +03:00 committed by Greg Kroah-Hartman
parent 9abac8537c
commit 82896210aa
1 changed files with 1 additions and 0 deletions
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drivers/tty/vt/keyboard.c
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@ -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);