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Commit b1fc0b1f authored by Alan Cox's avatar Alan Cox Committed by Linus Torvalds
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[PATCH] UML: tty locking 



Ensure current->signal->tty doesn't get freed during log_exec().

Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Acked-by: default avatarJeff Dike <jdike@addtoit.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 75e29b18

arch/um/kernel/exec.c

+3 −1
Original line number Diff line number Diff line
@@ -41,9 +41,11 @@ static long execve1(char *file, char __user * __user *argv, 
        long error;



#ifdef CONFIG_TTY_LOG

	task_lock(current);

	mutex_lock(&tty_mutex);

	task_lock(current);	/* FIXME:  is this needed ? */

	log_exec(argv, current->signal->tty);

	task_unlock(current);

	mutex_unlock(&tty_mutex);

#endif

        error = do_execve(file, argv, env, &current->thread.regs);

        if (error == 0){