Subject: fix oops in spu_alloc_node 
From: Patrick Mansfield <patmans@us.ibm.com>

Fix the following oops in spu_alloc_node.

I didn't see other reports of this or a fix, and don't know why it is not
hit more often, I seemed to only hit it after running a simple spu
executable multiple times in a row without much delay (scripted or from
command line).

Unable to handle kernel paging request for data at address 0x00004060
Faulting instruction address: 0xc0000000000345b4
cpu 0x0: Vector: 300 (Data Access) at [c000000001ffb750]
    pc: c0000000000345b4: .spu_alloc_node+0x90/0x128
    lr: c00000000003459c: .spu_alloc_node+0x78/0x128
    sp: c000000001ffb9d0
   msr: 9000000000009032
   dar: 4060
 dsisr: 42000000
  current = 0xc00000001ff7a810
  paca    = 0xc00000000033bf80
    pid   = 1860, comm = ppu_main
enter ? for help
0:mon> t
[c000000001ffba60] d00000000002d424 .spu_activate+0x3a4/0x3e4 [spufs]
[c000000001ffbb40] d00000000002c648 .spu_acquire_runnable+0x90/0xe0 [spufs]
[c000000001ffbbd0] d00000000002e738 .spufs_run_spu+0x9c/0x4e8 [spufs]
[c000000001ffbcc0] d00000000002cb34 .do_spu_run+0xac/0x168 [spufs]
[c000000001ffbd80] c00000000003556c .sys_spu_run+0xb0/0x140
[c000000001ffbe30] c00000000000861c syscall_exit+0x0/0x40

Signed-off-by: Patrick Mansfield <patmans@us.ibm.com>

Index: linux-2.6/arch/powerpc/platforms/cell/spu_base.c
===================================================================
--- linux-2.6.orig/arch/powerpc/platforms/cell/spu_base.c
+++ linux-2.6/arch/powerpc/platforms/cell/spu_base.c
@@ -391,7 +391,7 @@ void spu_free(struct spu *spu)
 {
 	mutex_lock(&spu_mutex);
 	list_add_tail(&spu->list, &spu_list[spu->node]);
-	list_add_tail(&spu->full_list, &spu_list[spu->node]);
+	list_add_tail(&spu->full_list, &spu_full_list);
 	mutex_unlock(&spu_mutex);
 }
 EXPORT_SYMBOL_GPL(spu_free);