fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / drivers / media / video / cpia_pp.c

diff --git a/drivers/media/video/cpia_pp.c b/drivers/media/video/cpia_pp.c
index 41f4b8d..b12cec9 100644 (file)
--- a/drivers/media/video/cpia_pp.c
+++ b/drivers/media/video/cpia_pp.c
@@ -82,6 +82,8 @@ struct pp_cam_entry {
        struct pardevice *pdev;
        struct parport *port;
        struct work_struct cb_task;
+       void (*cb_func)(void *cbdata);
+       void *cb_data;
        int open_count;
        wait_queue_head_t wq_stream;
        /* image state flags */
@@ -130,6 +132,20 @@ static void cpia_parport_disable_irq( struct parport *port ) {
 #define PARPORT_CHUNK_SIZE     PAGE_SIZE
 
 
+static void cpia_pp_run_callback(struct work_struct *work)
+{
+       void (*cb_func)(void *cbdata);
+       void *cb_data;
+       struct pp_cam_entry *cam;
+
+       cam = container_of(work, struct pp_cam_entry, cb_task);
+       cb_func = cam->cb_func;
+       cb_data = cam->cb_data;
+       work_release(work);
+
+       cb_func(cb_data);
+}
+
 /****************************************************************************
  *
  *  CPiA-specific  low-level parport functions for nibble uploads
@@ -664,7 +680,9 @@ static int cpia_pp_registerCallback(void *privdata, void (*cb)(void *cbdata), vo
        int retval = 0;
 
        if(cam->port->irq != PARPORT_IRQ_NONE) {
-               INIT_WORK(&cam->cb_task, cb, cbdata);
+               cam->cb_func = cb;
+               cam->cb_data = cbdata;
+               INIT_WORK_NAR(&cam->cb_task, cpia_pp_run_callback);
        } else {
                retval = -1;
        }