diff options
author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2006-09-25 10:51:41 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-28 22:36:43 (GMT) |
commit | e81ee637e4aed723f71007c90a901268317ed6d6 (patch) | |
tree | 25fec34b4577eb36b52b8e4e45a191138ac49404 /drivers/usb/serial | |
parent | 2e3a43f0b6f16705ec76d3744b82a116965ebebe (diff) | |
download | linux-e81ee637e4aed723f71007c90a901268317ed6d6.tar.xz |
usb-serial: possible irq lock inversion (PPP vs. usb/serial)
=========================================================
[ INFO: possible irq lock inversion dependency detected ]
Diffstat (limited to 'drivers/usb/serial')
-rw-r--r-- | drivers/usb/serial/cyberjack.c | 6 | ||||
-rw-r--r-- | drivers/usb/serial/generic.c | 6 | ||||
-rw-r--r-- | drivers/usb/serial/ipw.c | 6 | ||||
-rw-r--r-- | drivers/usb/serial/ir-usb.c | 6 | ||||
-rw-r--r-- | drivers/usb/serial/keyspan_pda.c | 6 | ||||
-rw-r--r-- | drivers/usb/serial/omninet.c | 6 | ||||
-rw-r--r-- | drivers/usb/serial/safe_serial.c | 6 |
7 files changed, 21 insertions, 21 deletions
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index 6286aba..d954ec3 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -214,14 +214,14 @@ static int cyberjack_write (struct usb_serial_port *port, const unsigned char *b return (0); } - spin_lock(&port->lock); + spin_lock_bh(&port->lock); if (port->write_urb_busy) { - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); dbg("%s - already writing", __FUNCTION__); return 0; } port->write_urb_busy = 1; - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); spin_lock_irqsave(&priv->lock, flags); diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 1727135..21cbaa0 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -175,14 +175,14 @@ int usb_serial_generic_write(struct usb_serial_port *port, const unsigned char * /* only do something if we have a bulk out endpoint */ if (serial->num_bulk_out) { - spin_lock(&port->lock); + spin_lock_bh(&port->lock); if (port->write_urb_busy) { - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); dbg("%s - already writing", __FUNCTION__); return 0; } port->write_urb_busy = 1; - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); count = (count > port->bulk_out_size) ? port->bulk_out_size : count; diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index 87306cb..812bc21 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -394,14 +394,14 @@ static int ipw_write(struct usb_serial_port *port, const unsigned char *buf, int return 0; } - spin_lock(&port->lock); + spin_lock_bh(&port->lock); if (port->write_urb_busy) { - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); dbg("%s - already writing", __FUNCTION__); return 0; } port->write_urb_busy = 1; - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); count = min(count, port->bulk_out_size); memcpy(port->bulk_out_buffer, buf, count); diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 1738b0b..1b348df 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -342,14 +342,14 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int if (count == 0) return 0; - spin_lock(&port->lock); + spin_lock_bh(&port->lock); if (port->write_urb_busy) { - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); dbg("%s - already writing", __FUNCTION__); return 0; } port->write_urb_busy = 1; - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); transfer_buffer = port->write_urb->transfer_buffer; transfer_size = min(count, port->bulk_out_size - 1); diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 49b8dc0..59e777f 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -518,13 +518,13 @@ static int keyspan_pda_write(struct usb_serial_port *port, the TX urb is in-flight (wait until it completes) the device is full (wait until it says there is room) */ - spin_lock(&port->lock); + spin_lock_bh(&port->lock); if (port->write_urb_busy || priv->tx_throttled) { - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); return 0; } port->write_urb_busy = 1; - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); /* At this point the URB is in our control, nobody else can submit it again (the only sudden transition was the one from EINPROGRESS to diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index e49f409..a764ff4e 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -256,14 +256,14 @@ static int omninet_write (struct usb_serial_port *port, const unsigned char *buf return (0); } - spin_lock(&wport->lock); + spin_lock_bh(&wport->lock); if (wport->write_urb_busy) { - spin_unlock(&wport->lock); + spin_unlock_bh(&wport->lock); dbg("%s - already writing", __FUNCTION__); return 0; } wport->write_urb_busy = 1; - spin_unlock(&wport->lock); + spin_unlock_bh(&wport->lock); count = (count > OMNINET_BULKOUTSIZE) ? OMNINET_BULKOUTSIZE : count; diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index 789771e..1e07dfa 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -298,14 +298,14 @@ static int safe_write (struct usb_serial_port *port, const unsigned char *buf, i dbg ("%s - write request of 0 bytes", __FUNCTION__); return (0); } - spin_lock(&port->lock); + spin_lock_bh(&port->lock); if (port->write_urb_busy) { - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); dbg("%s - already writing", __FUNCTION__); return 0; } port->write_urb_busy = 1; - spin_unlock(&port->lock); + spin_unlock_bh(&port->lock); packet_length = port->bulk_out_size; // get max packetsize |