firewire: Implement functionality to stop isochronous DMA contexts.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/firewire/fw-device-cdev.c b/drivers/firewire/fw-device-cdev.c
index b738c997ef39..1ce33d4f91a3 100644
--- a/drivers/firewire/fw-device-cdev.c
+++ b/drivers/firewire/fw-device-cdev.c
@@ -514,6 +514,11 @@ static int ioctl_start_iso(struct client *client, void __user *arg)
                                     request.speed, request.cycle);
 }
 
+static int ioctl_stop_iso(struct client *client, void __user *arg)
+{
+        return fw_iso_context_stop(client->iso_context);
+}
+
 static int
 dispatch_ioctl(struct client *client, unsigned int cmd, void __user *arg)
 {
@@ -532,6 +537,8 @@ dispatch_ioctl(struct client *client, unsigned int cmd, void __user *arg)
                 return ioctl_queue_iso(client, arg);
         case FW_CDEV_IOC_START_ISO:
                 return ioctl_start_iso(client, arg);
+        case FW_CDEV_IOC_STOP_ISO:
+                return ioctl_stop_iso(client, arg);
         default:
                 return -EINVAL;
         }