[PATCH] powerpc/ps3: Fix failure paths in ps3_create_spu()

[PATCH] powerpc/ps3: Fix failure paths in ps3_create_spu()

[Thorsten Blum]

ps3_destroy_spu() expects the logical SPE to be constructed and enabled
successfully. However, ps3_create_spu() calls ps3_destroy_spu() when
either construct_spu() or enable_spu() failed.

Only free spu->pdata when construct_spu() fails. If construct_spu()
succeeded but enable_spu() fails, destruct the logical SPE before
freeing spu->pdata.

Fixes: de91a5342995 ("[POWERPC] ps3: add spu support")
Cc: stable@vger.kernel.org
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 arch/powerpc/platforms/ps3/spu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/ps3/spu.c b/arch/powerpc/platforms/ps3/spu.c
index 33a676fa3d6c..05c439fed8a7 100644
--- a/arch/powerpc/platforms/ps3/spu.c
+++ b/arch/powerpc/platforms/ps3/spu.c
@@ -369,8 +369,10 @@ static int __init ps3_create_spu(struct spu *spu, void *data)
 	return result;
 
 fail_enable:
+	BUG_ON(lv1_destruct_logical_spe(spu_pdata(spu)->spe_id));
 fail_construct:
-	ps3_destroy_spu(spu);
+	kfree(spu->pdata);
+	spu->pdata = NULL;
 fail_malloc:
 	return result;
 }