3.16.7-ckt5 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Tyler Baker <tyler.baker@xxxxxxxxxx> commit 41544f9f38f19cb46dc9a8fa37c58677a0300899 upstream. Call spin_lock_init() before the spinlocks are used, both in early init and probe functions preventing a lockdep splat. I have been observing lockdep complaining [1] during boot on my a80 optimus [2] when CONFIG_PROVE_LOCKING has been enabled. This patch resolves the splat, and has been tested on a few other sunxi platforms without issue. [1] http://storage.kernelci.org/next/next-20150107/arm-multi_v7_defconfig+CONFIG_PROVE_LOCKING=y/lab-tbaker/boot-sun9i-a80-optimus.html [2] http://kernelci.org/boot/?a80-optimus Signed-off-by: Tyler Baker <tyler.baker@xxxxxxxxxx> Acked-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxx> Signed-off-by: Olof Johansson <olof@xxxxxxxxx> Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx> --- drivers/reset/reset-sunxi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/reset/reset-sunxi.c b/drivers/reset/reset-sunxi.c index a94e7a7820b4..51272b5d7552 100644 --- a/drivers/reset/reset-sunxi.c +++ b/drivers/reset/reset-sunxi.c @@ -102,6 +102,8 @@ static int sunxi_reset_init(struct device_node *np) goto err_alloc; } + spin_lock_init(&data->lock); + data->rcdev.owner = THIS_MODULE; data->rcdev.nr_resets = size * 32; data->rcdev.ops = &sunxi_reset_ops; @@ -157,6 +159,8 @@ static int sunxi_reset_probe(struct platform_device *pdev) if (IS_ERR(data->membase)) return PTR_ERR(data->membase); + spin_lock_init(&data->lock); + data->rcdev.owner = THIS_MODULE; data->rcdev.nr_resets = resource_size(res) * 32; data->rcdev.ops = &sunxi_reset_ops; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html