From: Christoph Hellwig <hch@lst.de>
Date: Mon, 23 Apr 2007 19:08:14 +0000 (+0200)
Subject: [POWERPC] spu_base: move spu_init_channels out of spu_mutex
X-Git-Tag: v2.6.22-rc1~1109^2~72^2~15
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=62c05d583ec016c40011462d5f03b072bfbd3dc7;p=linux-2.6-omap-h63xx.git

[POWERPC] spu_base: move spu_init_channels out of spu_mutex

There is no reason to execute spu_init_channels under spu_mutex
after the spu has been taken off the freelist it's ours.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
---

diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index eba7a2641dc..6242f3c19f6 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -431,10 +431,11 @@ struct spu *spu_alloc_node(int node)
 		spu = list_entry(spu_list[node].next, struct spu, list);
 		list_del_init(&spu->list);
 		pr_debug("Got SPU %d %d\n", spu->number, spu->node);
-		spu_init_channels(spu);
 	}
 	mutex_unlock(&spu_mutex);
 
+	if (spu)
+		spu_init_channels(spu);
 	return spu;
 }
 EXPORT_SYMBOL_GPL(spu_alloc_node);