Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().
Cc: Johan Hovold <jhovold@xxxxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
---
drivers/usb/serial/mos7840.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index fdf9535..762dad4 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -807,17 +807,18 @@ static void mos7840_bulk_out_data_callback(struct urb *urb)
struct usb_serial_port *port;
int status = urb->status;
int i;
+ unsigned long flags;
mos7840_port = urb->context;
port = mos7840_port->port;
- spin_lock(&mos7840_port->pool_lock);
+ spin_lock_irqsave(&mos7840_port->pool_lock, flags);
for (i = 0; i < NUM_URBS; i++) {
if (urb == mos7840_port->write_urb_pool[i]) {
mos7840_port->busy[i] = 0;
break;
}
}
- spin_unlock(&mos7840_port->pool_lock);
+ spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
if (status) {
dev_dbg(&port->dev, "nonzero write bulk status received:%d\n", status);
--
1.7.9.5
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