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authorJack Steiner <steiner@sgi.com>2009-04-03 03:59:10 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-03 06:05:06 +0400
commit6f2584f47474d29ce829604bfc8b56c10b352fdb (patch)
treef5b5c63c7c73785a641c995c2fe48b4c5cc726eb /drivers/misc/sgi-xp/xpc_channel.c
parentecdaf2b55251f718a1fbaf4a3f72bfd6e25c582c (diff)
downloadlinux-6f2584f47474d29ce829604bfc8b56c10b352fdb.tar.xz
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>
Diffstat (limited to 'drivers/misc/sgi-xp/xpc_channel.c')
-rw-r--r--drivers/misc/sgi-xp/xpc_channel.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/misc/sgi-xp/xpc_channel.c b/drivers/misc/sgi-xp/xpc_channel.c
index 45fd653dbe31..99a2534c38a1 100644
--- a/drivers/misc/sgi-xp/xpc_channel.c
+++ b/drivers/misc/sgi-xp/xpc_channel.c
@@ -183,6 +183,7 @@ xpc_process_openclose_chctl_flags(struct xpc_partition *part, int ch_number,
&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 @@ again:
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 "