[PATCH] powerpc: cell: Fix a reference leak bug in create_spu()

[Haoxiang Li]

spu_create_dev() calls device_register(), if it fails, put_device()
is required to drop the device reference.

Fixes: 8a25a2fd126c ("cpu: convert 'cpu' and 'machinecheck' sysdev_class to a 
regular subsystem")
Cc: sta...@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2...@163.com>
---
 arch/powerpc/platforms/cell/spu_base.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/cell/spu_base.c 
b/arch/powerpc/platforms/cell/spu_base.c
index 2c07387201d0..18145142d3ac 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -581,8 +581,10 @@ static int __init create_spu(void *data)
                goto out_destroy;
 
        ret = spu_create_dev(spu);
-       if (ret)
+       if (ret) {
+               put_device(&spu->dev);
                goto out_free_irqs;
+       }
 
        mutex_lock(&cbe_spu_info[spu->node].list_mutex);
        list_add(&spu->cbe_list, &cbe_spu_info[spu->node].spus);
-- 
2.25.1