5.4-stable review patch. If anyone has any objections, please let me know.
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From: Guoqing Jiang guoqing.jiang@canonical.com
commit 78cb66caa6ab5385ac2090f1aae5f3c19e08f522 upstream.
Replace pm_runtime_enable with the devres-enabled version which can trigger pm_runtime_disable.
Otherwise, the below appears during reload driver.
mtk_rng 1020f000.rng: Unbalanced pm_runtime_enable!
Fixes: 81d2b34508c6 ("hwrng: mtk - add runtime PM support") Cc: stable@vger.kernel.org Suggested-by: Chen-Yu Tsai wenst@chromium.org Signed-off-by: Guoqing Jiang guoqing.jiang@canonical.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/char/hw_random/mtk-rng.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/char/hw_random/mtk-rng.c +++ b/drivers/char/hw_random/mtk-rng.c @@ -149,7 +149,7 @@ static int mtk_rng_probe(struct platform dev_set_drvdata(&pdev->dev, priv); pm_runtime_set_autosuspend_delay(&pdev->dev, RNG_AUTOSUSPEND_TIMEOUT); pm_runtime_use_autosuspend(&pdev->dev); - pm_runtime_enable(&pdev->dev); + devm_pm_runtime_enable(&pdev->dev);
dev_info(&pdev->dev, "registered RNG driver\n");