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Subject[PATCH] tty: use NULL for ptrs
From: Randy Dunlap <randy.dunlap@oracle.com>

Fix sparse warning in tty_io:
drivers/char/tty_io.c:1536:34: warning: Using plain integer as NULL pointer

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
---
drivers/char/tty_io.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.20-git9.orig/drivers/char/tty_io.c
+++ linux-2.6.20-git9/drivers/char/tty_io.c
@@ -1533,7 +1533,7 @@ void disassociate_ctty(int on_exit)

spin_lock_irq(&current->sighand->siglock);
tty_pgrp = current->signal->tty_old_pgrp;
- current->signal->tty_old_pgrp = 0;
+ current->signal->tty_old_pgrp = NULL;
spin_unlock_irq(&current->sighand->siglock);
put_pid(tty_pgrp);

-
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