V4L/DVB (13398): firedtv: reform lock transaction backend call

Preparation for the port of firedtv to the firewire-core kernel API:
The fdtv->backend->lock() hook and thus the CMP code is slightly changed
to better fit with the new API.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/drivers/media/dvb/firewire/firedtv-1394.c b/drivers/media/dvb/firewire/firedtv-1394.c
index a2e3841f8ee9..22ea4c90f5c9 100644
--- a/drivers/media/dvb/firewire/firedtv-1394.c
+++ b/drivers/media/dvb/firewire/firedtv-1394.c
@@ -87,10 +87,15 @@ static inline struct node_entry *node_of(struct firedtv *fdtv)
         return container_of(fdtv->device, struct unit_directory, device)->ne;
 }
 
-static int node_lock(struct firedtv *fdtv, u64 addr, void *data, __be32 arg)
+static int node_lock(struct firedtv *fdtv, u64 addr, __be32 data[])
 {
-        return hpsb_node_lock(node_of(fdtv), addr, EXTCODE_COMPARE_SWAP, data,
-                              (__force quadlet_t)arg);
+        int ret;
+
+        ret = hpsb_node_lock(node_of(fdtv), addr, EXTCODE_COMPARE_SWAP,
+                (__force quadlet_t *)&data[1], (__force quadlet_t)data[0]);
+        data[0] = data[1];
+
+        return ret;
 }
 
 static int node_read(struct firedtv *fdtv, u64 addr, void *data, size_t len)