vc: Locking clean up

The virtual console layer uses the BKL for various things that don't really
need it. Clean them out.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/char/selection.c b/drivers/char/selection.c
index f97b9e848064..6e79340d732f 100644
--- a/drivers/char/selection.c
+++ b/drivers/char/selection.c
@@ -26,6 +26,7 @@
 #include <linux/selection.h>
 #include <linux/tiocl.h>
 #include <linux/console.h>
+#include <linux/smp_lock.h>
 
 /* Don't take this from <ctype.h>: 011-015 on the screen aren't spaces */
 #define isspace(c)      ((c) == ' ')
@@ -312,6 +313,8 @@ int paste_selection(struct tty_struct *tty)
         struct  tty_ldisc *ld;
         DECLARE_WAITQUEUE(wait, current);
 
+        lock_kernel();
+
         acquire_console_sem();
         poke_blanked_console();
         release_console_sem();
@@ -335,5 +338,6 @@ int paste_selection(struct tty_struct *tty)
         __set_current_state(TASK_RUNNING);
 
         tty_ldisc_deref(ld);
+        unlock_kernel();
         return 0;
 }