Although tty_lock() already protects concurrent update to
blocked_open, that fails to meet the separation-of-concerns between
tty_port and tty.
Signed-off-by: Peter Hurley <pe...@hurleysoftware.com>
---
net/irda/ircomm/ircomm_tty.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
index 1721dc7..d282bbe 100644
--- a/net/irda/ircomm/ircomm_tty.c
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -317,8 +317,8 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb
*self,
spin_lock_irqsave(&port->lock, flags);
if (!tty_hung_up_p(filp))
port->count--;
- spin_unlock_irqrestore(&port->lock, flags);
port->blocked_open++;
+ spin_unlock_irqrestore(&port->lock, flags);
while (1) {
if (tty->termios.c_cflag & CBAUD)
@@ -362,8 +362,8 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb
*self,
spin_lock_irqsave(&port->lock, flags);
if (!tty_hung_up_p(filp))
port->count++;
- spin_unlock_irqrestore(&port->lock, flags);
port->blocked_open--;
+ spin_unlock_irqrestore(&port->lock, flags);
IRDA_DEBUG(1, "%s(%d):block_til_ready after blocking on %s
open_count=%d\n",
__FILE__, __LINE__, tty->driver->name, port->count);
--
1.8.1.2
--
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