diff options
Diffstat (limited to 'drivers/tty')
-rw-r--r-- | drivers/tty/tty_audit.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c index ea2e5ad71731..755d418019c8 100644 --- a/drivers/tty/tty_audit.c +++ b/drivers/tty/tty_audit.c @@ -111,11 +111,12 @@ static void tty_audit_buf_push(struct tty_audit_buf *buf) void tty_audit_exit(void) { struct tty_audit_buf *buf; + unsigned long flags; - spin_lock_irq(¤t->sighand->siglock); + spin_lock_irqsave(¤t->sighand->siglock, flags); buf = current->signal->tty_audit_buf; current->signal->tty_audit_buf = NULL; - spin_unlock_irq(¤t->sighand->siglock); + spin_unlock_irqrestore(¤t->sighand->siglock, flags); if (!buf) return; @@ -133,9 +134,11 @@ void tty_audit_exit(void) */ void tty_audit_fork(struct signal_struct *sig) { - spin_lock_irq(¤t->sighand->siglock); + unsigned long flags; + + spin_lock_irqsave(¤t->sighand->siglock, flags); sig->audit_tty = current->signal->audit_tty; - spin_unlock_irq(¤t->sighand->siglock); + spin_unlock_irqrestore(¤t->sighand->siglock, flags); } /** @@ -145,13 +148,14 @@ void tty_audit_tiocsti(struct tty_struct *tty, char ch) { struct tty_audit_buf *buf; int major, minor, should_audit; + unsigned long flags; - spin_lock_irq(¤t->sighand->siglock); + spin_lock_irqsave(¤t->sighand->siglock, flags); should_audit = current->signal->audit_tty; buf = current->signal->tty_audit_buf; if (buf) atomic_inc(&buf->count); - spin_unlock_irq(¤t->sighand->siglock); + spin_unlock_irqrestore(¤t->sighand->siglock, flags); major = tty->driver->major; minor = tty->driver->minor_start + tty->index; @@ -221,10 +225,11 @@ static struct tty_audit_buf *tty_audit_buf_get(struct tty_struct *tty, unsigned icanon) { struct tty_audit_buf *buf, *buf2; + unsigned long flags; buf = NULL; buf2 = NULL; - spin_lock_irq(¤t->sighand->siglock); + spin_lock_irqsave(¤t->sighand->siglock, flags); if (likely(!current->signal->audit_tty)) goto out; buf = current->signal->tty_audit_buf; @@ -232,7 +237,7 @@ static struct tty_audit_buf *tty_audit_buf_get(struct tty_struct *tty, atomic_inc(&buf->count); goto out; } - spin_unlock_irq(¤t->sighand->siglock); + spin_unlock_irqrestore(¤t->sighand->siglock, flags); buf2 = tty_audit_buf_alloc(tty->driver->major, tty->driver->minor_start + tty->index, @@ -242,7 +247,7 @@ static struct tty_audit_buf *tty_audit_buf_get(struct tty_struct *tty, return NULL; } - spin_lock_irq(¤t->sighand->siglock); + spin_lock_irqsave(¤t->sighand->siglock, flags); if (!current->signal->audit_tty) goto out; buf = current->signal->tty_audit_buf; @@ -254,7 +259,7 @@ static struct tty_audit_buf *tty_audit_buf_get(struct tty_struct *tty, atomic_inc(&buf->count); /* Fall through */ out: - spin_unlock_irq(¤t->sighand->siglock); + spin_unlock_irqrestore(¤t->sighand->siglock, flags); if (buf2) tty_audit_buf_free(buf2); return buf; @@ -317,16 +322,17 @@ void tty_audit_add_data(struct tty_struct *tty, unsigned char *data, void tty_audit_push(struct tty_struct *tty) { struct tty_audit_buf *buf; + unsigned long flags; - spin_lock_irq(¤t->sighand->siglock); + spin_lock_irqsave(¤t->sighand->siglock, flags); if (likely(!current->signal->audit_tty)) { - spin_unlock_irq(¤t->sighand->siglock); + spin_unlock_irqrestore(¤t->sighand->siglock, flags); return; } buf = current->signal->tty_audit_buf; if (buf) atomic_inc(&buf->count); - spin_unlock_irq(¤t->sighand->siglock); + spin_unlock_irqrestore(¤t->sighand->siglock, flags); if (buf) { int major, minor; |