Commit 1f63c022 authored May 28, 2020 by Dinghao Liu Committed by Sasha Levin Jun 30, 2020

hwrng: ks-sa - Fix runtime PM imbalance on error



[ Upstream commit 95459261c99f1621d90bc628c2a48e60b7cf9a88 ]

pm_runtime_get_sync() increments the runtime PM usage counter even
the call returns an error code. Thus a pairing decrement is needed
on the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent a24f9d6c

drivers/char/hw_random/ks-sa-rng.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -216,6 +216,7 @@ static int ks_sa_rng_probe(struct platform_device *pdev)
		ret = pm_runtime_get_sync(dev);
		if (ret < 0) {
		dev_err(dev, "Failed to enable SA power-domain\n");
		pm_runtime_put_noidle(dev);
		pm_runtime_disable(dev);
		return ret;
		}