sgi-gru: add support to the GRU driver for message queue interrupts
Add support to the GRU driver for message queue interrupts.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/misc/sgi-xp/xpc_channel.c b/drivers/misc/sgi-xp/xpc_channel.c
index 45fd653..99a2534 100644
--- a/drivers/misc/sgi-xp/xpc_channel.c
+++ b/drivers/misc/sgi-xp/xpc_channel.c
@@ -183,6 +183,7 @@
&part->remote_openclose_args[ch_number];
struct xpc_channel *ch = &part->channels[ch_number];
enum xp_retval reason;
+ enum xp_retval ret;
spin_lock_irqsave(&ch->lock, irq_flags);
@@ -399,8 +400,13 @@
DBUG_ON(args->local_nentries == 0);
DBUG_ON(args->remote_nentries == 0);
+ ret = xpc_save_remote_msgqueue_pa(ch, args->local_msgqueue_pa);
+ if (ret != xpSuccess) {
+ XPC_DISCONNECT_CHANNEL(ch, ret, &irq_flags);
+ spin_unlock_irqrestore(&ch->lock, irq_flags);
+ return;
+ }
ch->flags |= XPC_C_ROPENREPLY;
- xpc_save_remote_msgqueue_pa(ch, args->local_msgqueue_pa);
if (args->local_nentries < ch->remote_nentries) {
dev_dbg(xpc_chan, "XPC_CHCTL_OPENREPLY: new "